Publish Year: 2005 Title: Spring 2005 Gem News International Abstract: Tucson 2005
Colored Stones and Organic Materials
            AGTA Design Center Features Lapidary Art
            Amethyst from Georgia
            Amethyst and Citrine from Northwestern Namibia
            Aquamarine from Mt. Antero, Colorado
            Saturated Blue Aquamarine from Nigeria
            Carved Chalcedony Chain
            New Emerald Deposit in Xinjiang, China
            Gold-in-Quartz from Mariposa County, California
            Iolite from Northeastern Brazil
            Kyanite Widely Available
            Albitic “Moonstone” from the Morogoro Region, Tanzania
            A Faceted Pezzottaite from Afghanistan
            Tanzanite Marketing Initiatives
Synthetics and Simulants
            Manufactured Gold/Silver-in-Quartz
GNI Regular Features
Diamonds
            10.53 ct Gem-Quality Diamond from Saskatchewan, Canada
Inclusions in Gems
            Spinel in Aquamarine
            “Bamboo” Moonstone
            Pezzottaite in Quartz
Treatments
            Treated-Color Topaz from Pakistan
Conference Reports
            World Diamond Conference, Perth, Australia
Miscellaneous
            Burmese Faceted Rubies and the U.S. Import Ban
Announcements
            Gem-A Field Trip to Brazil
Exhibits
            Native American Jewelry at AMNH
            Pearls at the Milwaukee Public Museum
            Gems at the Hungarian Natural History Museum
            Cameos at the Met

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Publish Year: 2004 Title: Winter 2004 Gem News International Abstract: Diamonds
            A Natural Diamond with Very High Ni Content
Colored Stones and Organic Materials
            Adularescent Chalcedony from Iran
            Clinohumite from the Pamir Mountains, Tajikistan
            Corundum-Fuchsite-Kyanite Rock from India
            A New Gem Material from Madagascar: A Mixture of Cristobalite and Opal
            Jeremejevite from Madagascar
            Kyanite from Tanzania
            Sapphires from Afghanistan and Pakistan
            Sapphires from Baffin Island, Canada
            Unusual Star and “Cat’s-Eye” Sapphire
            Large Cat’s-Eye Topaz from Ukraine
            A Notable Triplite from Pakistan
            Update on Several Gem Localities in Zambia and Malawi
Inclusions in Gems
            Barite “Spears” in Fluorite
            Arizona Peridot with Unusual Inclusions
            Double-Eye Chatoyant Quartz
            Graphite Inclusions in Quartz from Brazil
            Quartz with Molybdenite
            Rutile “Moth” in Quartz
Synthetics and Simulants
            Synthetic Verneuil Corundum with Unusual Color Zoning
            Imitation Clam “Pearl”
Announcements
            Visit Gems & Gemology in Tucson
            Gem Treatment Seminar in Tucson
            2005 Gem-A Field Trips
Exhibits
            Cartier Collection in Houston
            Native American Jewelry at AMNH
Conferences
            WJA in New York
            PDAC 2005
            BaselWorld 2005
            Russian Gemology
            GemmoBasel 2005
            Diamonds at GAC-MAC
            Bead Expo in Miami
            Goldschmidt Conference

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Publish Year: 2004 Title: Summer 2004 Gem News International Abstract: Colored Stones and Organic Materials
            Amethyst from California
            Green Petrified Wood from Arizona
            A Unique Quartz Sculpture from Peru
            Scapolite from Mozambique
            Update on Tourmaline and Other Minerals from Warner Springs, California
Instruments and Techniques
            Recent U.S. Patents for Diamond Fingerprinting Methods
Synthetics and Simulants
            Colored Cubic Zirconia Buddha Carvings
            “Shell Pearls” with Tridacna Clam Shell Beads
            Fake Tanzanite Mineral Specimens
Conference Reports
            ICNDST-9
            GAC-MAC 2004
Exhibits
            Pearls at the Royal Ontario Museum
            Carnegie Gem & Mineral Show
Conferences
            5th European Conference on Mineralogy and Spectroscopy
            Gems of Pacific Continental Margins
            Diamond 2004
            ICAM 2004 in Brazil
            Hong Kong Jewellery & Watch Fair
            Rapaport International Diamond Conference 2004
            CGA Gemmology Conference 2004
            Pegmatites at GSA
            Antwerp Diamond Conference

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Publish Year: 2003 Title: Winter 2003 Gem News International Abstract: Diamonds
            A Comparison of Three Historic Blue Diamonds
            A Natural Yellow Diamond with Nickel-Related Optical Centers
Colored Stones and Organic Materials
            Gem-Quality Afghanite
            Blue Beryl Discovery in Canada
            Gem-Quality Corundum from Colombia: Localities and Inclusions
            Emeralds from Madagascar with Strong Blue/Green Dichroism
            Peruvian Blue Opal
            Some Interesting Pearls from the North American West Coast
            “Platinum Quartz”
            Some Rare Faceted Gem Materials
            Large Scapolite from Tanzania
            Update on Tanzanite Mining by AFGEM
Synthetics and Simulants
            Chatoyant Glass Cabochons from China
            New Synthetic Opal Varieties
            Plastic Imitations of a Walrus Tusk and a Sperm Whale Tooth
Conference Reports
            Antwerp Diamond Conference
            Rapaport International Diamond Conference
Announcements
            2004 AGTA Cutting Edge Award Winners
Professional Jeweler’s Stone of the Year
            Afghanistan/Pakistan Gem Tour
Conferences
            PDAC 2004
            ICNDST-9 in Tokyo
            BASELWORLD 2004
            GAC-MAC Joint Annual Meeting
            GAA Conference
            Santa Fe Symposium
            20th Colloquium of African Geology
            GEORAMAN 2004
            Geoscience Africa 2004
            International Geological Congress
            Gems of Pacific Continental Margins
            Diamond 2004
            ICAM 2004 in Brazil
Exhibits
            Turquoise at the San Diego Museum of Man
            Jade at the Field Museum

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Publish Year: 2003 Title: Fall 2003 Gem News International Abstract: Diamonds
            Australia’s Largest Diamond Crystal Found at Merlin
            Update on Diamond Mining and Exploration in Northern Alberta, Canada
            Profile Cut Diamonds
Colored Stones and Organic Materials
            An Alexandrite-Emerald Intergrowth
            Amethyst from Nigeria
            New Hiddenite Discovery in Historic North Carolina Location
            Update on Sapphires, Pezzottaite, and other Gems from Madagascar
            Update on Mining and Marketing Gems in Mogok, Myanmar
            “Star” Obsidian
            An Unusual Star Quartz
            Star Sunstone from Tanzania
            More Curiosities from Tucson 2003
Synthetics and Simulants
            Chemical Vapor Deposition (CVD): A Gem-Quality Laboratory-Created Diamond Source             “Mermaid Crystal,” an Opal Simulant
            Synthetic Spinel with Unusual Inclusions
Treatments
            HPHT-processed Diamonds from Korea
            Tourmaline with an Iridescent Coating
Miscellaneous
            Heat Treatment and Gem Cutting Facility in Madagascar
            Plans for a Gemological Institute in Madagascar
Conference Reports
            Gem Presentations at the GAC-MAC-SEG Meeting
            8th International Kimberlite Conference
Announcements
            John I. Koivula Wins AGS Liddicoat Journalism Award for G&G Article
Conferences
            Québec Exploration 2003
            Gems at the MRS Fall Meeting
            PDAC 2004
Exhibits
            Chanel Collection Privée
            Treasures of Ancient Egypt at the New Orleans Museum of Art

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Publish Year: 2003 Title: Summer 2003 Gem News International Abstract: Diamonds
            "Additional” Facets and Their Effect on Scintillation
Colored Stones and Organic Materials
            “Alphabet” Agates from Indonesia
            Unusual Cat’s-Eye Beryl from Brazil
            Magnetic Corundum
            Large Pink Fluorite from Pakistan
            Crystals of Color-Change Garnet from Bekily, Madagascar
            The Lion Cut for Colored Stones and Diamonds
            Tale of a Swallowed Tahitian Cultured Pearl
            Trapiche Rubies Displaying Asterism
            Cat’s-Eye Scapolite from Tanzania
            Miscellany from Tucson
Synthetics and Simulants
            Cubic Zirconia Briolettes
            A Bicolored Synthetic Diamond
Conference Reports
            SME 2003 Annual Meeting
Announcements
            Digital Geologic Map of Madagascar
            Thailand Gem Adventure
            AGTA Spectrum Awards competition
Conferences
            Jewellery World Expo 2003
            GIA GemFest USA
            IGC Postponed
            Training Courses in Heat Treating Corundum
            Geophysical Exploration for Diamonds
Diamonds—From Source to Use
            HRD Diamond Marketing Conference
            SEG Diamond and Kimberlite Course
Exhibits
            Enamels at the Newark Museum
            Art Deco at the Royal Ontario Museum
            Tourmaline at Mineralientage München

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Publish Year: 2003 Title: Spring 2003 Gem News International Abstract: Tucson 2003
Colored Stones and Organic Materials
            Dyed “Landscape” Agate
            Carved Brazilian Bicolored Beryl and Nigerian Tourmaline
            A New Saturated Purplish Pink Cs-“Beryl” from Madagascar: Preliminary Analyses
            A New Find of Demantoid at a Historic Site in Kladovka, Russia
            Fire Opal from Juniper Ridge, Oregon
            Cultured Pearls with Diamond Insets
            Effect of Cutting on the Appearance of Spinel
Instruments and Techniques
            Gemewizard™ Gem Communication and Trading Software
Conference Reports
            AGTA Corundum Panel
GNI Regular Features
Diamonds
            European Commission Approves the De Beers Supplier of Choice Initiative
            A type IaB Diamond Showing a “Tatami” Strain Pattern
Colored Stones
            Poldervaartite from South Africa
            Triphylite Inclusions in Quartz from Brazil
Synthetics and Simulants
            Life Gem Synthetic Diamonds
Conference Reports
            SME 2003 Annual Meeting
Announcements
            AGTA Spectrum Awards Competition
Exhibits
            GIA Museum Exhibits in Carlsbad
            Gems at the Bowers Museum Extended Again
            Fabergé at the Walters Art Museum
Conferences
            CIM Montreal 2003
            GIA GemFests 2003
            Field Symposium in Urumqi
            13th V. M. Goldschmidt Conference
            JCK Show Las Vegas
            Faceters Symposium 2003
            Jewelry 2003: Honoring the Sataloffs
            FIPP 2003
            Diamond 2003

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Publish Year: 2002 Title: Winter 2002 Gem News International Abstract: Diamonds
            Kimberley Process Ratified
Colored Stones and Organic Materials
            Alexandrite from Mananjary, Madagascar
            Color-Change Apatite from Kazakhstan
            New Emerald Find from the Chivor Region, Colombia
            Important Discovery of Jadeite in Guatemala
            Faceted Milarite with Unusual Inclusions
            Spinel Crystal with an Unusual Shape
            More Tourmaline from Warner Springs, California
            Faceted Rossmanite and other Tourmalines from Nigeria
            Uvite Tourmaline from Afghanistan
Synthetics and Simulants
            An Assembled Agate “Nodule”
            A Glowing Manufactured Gem
            “Rainbow Calsilica”
            Heat Treatment Experiments on Faceted Amber
            An Update on Be-Diffused Corundum
            Orange Topaz with Synthetic Hematite Coating
Conference Reports
            Diamond Presentations at the Annual Australian Diamond Conference
            Antwerp Diamond Conference
            Antwerp Gem Conference
Announcements
            Beryllium: A Known Carcinogen
Conferences
            PDAC 2003 Will Take Place in Toronto in March
            Basel 2003 Scheduled for April
            Moscow Gemology Colloquium Takes Place in Moscow in April
            Gems and Industrial Minerals Conference Will Occur in Reno in May
            GAC-MAC-SEG Meeting Set for Vancouver in May
            Maine Pegmatite Workshop Included in Field Studies
            Kimberlite Conference Planned in Victoria in June
In Memoriam
            Prof. Dr. Pieter C. Zwaan, 1928–2002, Gems & Gemology author and noted gemologist

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Publish Year: 2002 Title: Fall 2002 Gem News International Abstract: Diamonds
            Australia’s Ellendale Diamond Mine Opens
Colored Stones and Organic Materials
            Aquamarine and Spessartine from Tanzania
            Brown Beryl from Mozambique
            Yellowish Green and Green Chrysoberyl from Ilakaka, Madagascar
            “Tashmarine”: Diopside from Central Asia
            Carved Emeralds from the Malagana Archeological Site in Colombia
            Hemimorphite from Congo
            Jeremejevite from the Erongo Mountains, Namibia
            New Morganite Mine in Madagascar
            Update on Some Namibian Gem localities
            Some Interesting New Opals from Brazil
            Bicolored Spessartine from Brazil
            Pink/Yellow Spodumene from Afghanistan
Synthetics and Simulants
            Some Glass Imitations Encountered in Namibia
            Plastic and Steel Pearl Imitations
Miscellaneous
            Gem Cutting Factories in Namibia
Conference Reports
            Gemstone Deposits of Colorado and the Rocky Mountain Region
            Gemological Reports at Namibian Geological Conference
Announcements
            Yearly Updates to the G&G “Twenty Year” Index
            New Map of Russian Gem Resources
Conferences
            Australian Diamond Conference Scheduled for December in Perth
            ICA Congress Will Occur in Jaipur, India, in January 2003
Exhibits
            GIA Museum Exhibits in Carlsbad
            Events at the Carnegie Museum of Natural History
            Gems at the Bowers Museum Extended

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Publish Year: 2002 Title: Summer 2002 Gem News International Abstract: Conference Reports
            AGU Meeting Examines Diamond Provenance
            GSA Meeting Reports on Western U.S. Gem Occurrences
            Report from the 3rd World Diamond Conference, Vancouver
Diamonds
            New Round Diamond Cuts
Colored Stones and Organic Materials
            Benitoite Recovery and Cutting: Significant Progress
            Cassiterite from Viloco, Bolivia
            Emerald with Feldspar Matrix from Brazil
            Sunstone Feldspar from Tanzania
            Update on Namibian Demantoid Garnet
            Unusual Kyanite from Brazil
            South Sea Cultured Pearls with Broken Beads
            Some Developments in Freshwater Cultured and “Keshi” Pearls
            New Sapphire Locality in Afghanistan
            Elbaite-Liddicoatite Tourmaline from Vietnam
            Green Zoisite Reappears
Synthetics and Simulants
            Massive Fuchsite Imitations of Emerald
            Unusual Synthetic Rubies
Treatments
            Another Identification Criterion for Imitation Asterism Produced by Surface Scratching
            Irradiated Color-Change Fluorite
Announcements
            Now Available: extraLapis English
Conferences
            Natural Glasses Scheduled for France in August
            Diamond 2002 Will Take Place in Spain in September
            Hong Kong Jewellery and Watch Fair Scheduled for September
Exhibits
Pearls Exhibit at the Field Museum
            Diamond Exhibition in Antwerp

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Publish Year: 2001 Title: Winter 2001 Gem News International Abstract: Special Report
            U.S. Postal Service Irradiation Process May Affect Some Gemstones
28th International Gemmological Conference
            Update on Piteiras Emeralds, Minas Gerais, Brazil
            Update on Jadeite Mining in Myanmar
            The Structure of Opals
            Transparent Green Orthoclase Feldspar from Vietnam
            Cultured Mabe Pearls from North Queensland, Australia
            “Young” and “Old” Sapphires from Australia and Southeast Asia
            Spanish Gem Deposits
            Tsavorite from Tanzania and Elsewhere
            Advanced Spectroscopic Methods Applied to Gem Materials
            Synthetic and Enhanced Gems from Russia
            Recent Observations at CISGEM
            A Code of Ethics for Gemologists and Jewelers
            Hardness Testing of Gemstones
            Diamond Presentations at the Annual AusIMM and Australian Diamond Conferences
Colored Stones and Organic Materials
            Gem Resources of Afghanistan
            Update on Amethyst, Citrine, and Ametrine from the Anahí Mine, Bolivia
            “Copal” Resin from Madagascar
            More Interesting Inclusions in Copal Resin from Madagascar
            Iolite and Corundum in Wyoming
            Green Kyanite from Bahia, Brazil
            “Ruby Rock” Cabochons
            A New Find of Tourmaline in Warner Springs, California
Synthetics and Simulants
            Synthetic Topaz Crystals
Exhibits
            A Visit to the Pearls Exhibit at AMNH
            Gems at the Bowers Museum
            GIA Museum Exhibits
Announcements
            GIA’s New Graduate Retail Management Program
            Trip to Idar-Oberstein, Germany
Conferences
            International Bead Expo 2002
            PDAC 2002
            19th Colloquium of African Geology
            Basel 2002
            Workshop on Diamond and Diamond-like Carbon
            Global Exploration 2002
            AGS Conclave
            Gemmological Association of Australia Conference
            Santa Fe Symposium
            GAC–MAC Saskatoon 2002
            16th Australian Geological Convention
            IAS2002 Congress
            8th International Conference New Diamond Science and Technology 2002

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Publish Year: 2001 Title: Fall 2001 Gem News International Abstract: Diamonds
            Report from the 2nd World Diamond Conference, Vancouver
            Diamonds from Copeton, Australia
Colored Stones and Organic Materials
            Maxixe-Type Green-Blue Beryls with Eye-Visible Pleochroism
            Coloration of Morganite from Pala, California
            Vanadium-Colored Beryl from China
            Mini-Faults in Chalcedony
            Recent Gem Discoveries in Pala, California
            A Statuette Containing a Large Natural Blister Pearl
            Exceptional Carpet Shell Pearl
            Tahitian “Keshi” Cultured Pearls
            Pearl Culturing in Northwest Australia
            Green Powellite from Chile
            Anhydrite Inclusion in a Ruby from Myanmar
            Ruby and Sapphire Mining at Barrington Tops, Australia
            Renewed Mining for Rubies in Nanyaseik, Northern Myanmar
            Blue-to-Green Tourmaline from Nigeria
            Nigeria as a New Source of Copper-Manganese-Bearing Tourmaline
            More on Liddicoatite from Nigeria
Synthetics and Simulants
            Laboratory-Grown Orange-to-Yellow “Langasite”
            Laboratory-Grown Pink SrLaGa3O7, a Material Related to “Langasite”
            An Unusual “Crystal” of Synthetic Ruby from Sri Lanka
            A Rare Medieval Sapphire Imitation
Announcements
            GAGTL Gem-A Conference 2001
            SimDesign 2001
            Australian Diamond Conference
            Visit Gems & Gemology Staff in Tucson
            Jewels of the Nizam
Exhibits
            Gem Museum in Sri Lanka
Pearls at the American Museum of Natural History

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Publish Year: 2001 Title: Summer 2001 Gem News International Abstract: Diamonds
            Royal Asscher Cut
            Diamonds in Canada: An Update
            Field Excursion to Canadian Diamond Mines
            Diamond Presentations at the PDAC Conference
            A Table with Trigons
Colored Stones and Organic Materials
            Amber (“Burmite”) from Myanmar: Production Resumes
            Cat’s-Eye Amethyst from Brazil
            Brownish Red to Orange Gems from Afghanistan/Pakistan Misrepresented as Bastnäsite
            Spinel with Clinohumite from Mahenge, Tanzania
            An Interesting Engraved Emerald
            Unusual Rutilated Quartz
            Important New Ruby Deposits in Eastern Madagascar: Chemistry and Internal Features
            The New Ruby Deposits in Eastern Madagascar: Mining and Production
            Ruby Crystal with Large Mobile Gas Bubble
            A Brownish Green Sapphire, with Pyrochlore Inclusions
            Update on the Vortex Sapphire Mine, Yogo Gulch, Montana
            Canary Tourmaline from Malawi
            A Bismuth-Bearing Liddicoatite from Nigeria
Synthetics and Simulants
            “Jurassic Bugs” Amber Imitation
            Deceptive Assembled Diamond Imitations from Brazil
            Enamel-Backed Quartz as a Star Sapphire Imitation
Miscellaneous
            11th Annual V. M. Goldschmidt Conference
            Gemological Conference at the Moscow State Geoprospecting Academy
            A Visit to the Harvard Tourmaline Exhibit
Announcements
            AGTA announces changes to Spectrum Awards

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Publish Year: 2001 Title: Spring 2001 Gem News International Abstract: Diamonds
            White House Conference on “Conflict” Diamonds
TUCSON 2001
Diamonds
            Update on GIA’s Diamond Cut Research
Colored Stones and Organic Materials
            Cultured Abalone Pearls from California
            Benitoite Mine Sold
            Emeralds from Laghman, Afghanistan
            First Production of Emeralds from Piteiras, Brazil
            Educational Iolite
            “Hte Long Sein” Jadeite
            Kunzite from Nigeria
            “Rainbow” Obsidian from Jalisco, Mexico
            New Production of Indonesian Opal
            Australian Prehnite Returns
            “Yosemite” Topaz
            Colored Tourmaline from Northern Pakistan
            Fashioning the “Green King of Africa” Tsavorite
            Highlights from the TGMS Show and Mineralogical Symposium
            Faceted Vesuvianite from California
Synthetics and Simulants
            Opal Imitations
            Green Flame-Fusion Synthetic Sapphire
Treatments
            Platinum Coating of Drusy Materials
Miscellaneous
            An Attractive Way to Display Loose Gemstones
            Micromosaics from Natural Gemstones
Announcements
            Leigha Theft
            Conferences
            Exhibits
                        Gold of Africa Museum
                        Romancing the Stone: The Many Facets of Tourmaline
                        Programa Royal Collections

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Publish Year: 2000 Title: Fall 2000 Gem News International Abstract: Diamonds
            Apec 2000 International Jewellery Conference Features Diamonds, Education,
            and Treatments
            DeBeers’s Newly Stated Direction
Colored Stones and Organic Materials
            Mosaic Ammonite
            Gemmy Anhydrite from Iran
            Aquamarine from Southeast India
            Coral Exploration Resumes in Hawaii
            Fresnoite: A First Examination
            Gemological Presentations at the 31st International Geological Congress
            Visit to a Malagasy Lapidary Facility
            Rubies (and Sapphires) from Colombia
            Lavender Sugilite with Green Spots
            Paraíba Tourmaline Update
            Tourmaline with an Apparent Change-of-Color in One Pleochroic Direction
Synthetics and Simulants
            Magnetic Hematite Imitation in Jewelry
            Curved Quadruplet Boulder Opal Imitations
Miscellaneous
            Concave Faceting Technique Developed for Sapphires
Announcements
            Visit Gems & Gemology Staff in Tucson
            GANA exhibit at the Carnegie Museum
            GAGTL Conference 2000
            1st Brazilian Symposium on the Treatment and Characterization of Gems
            Fabergé Exhibit in Tucson
            Hong Kong International Jewellery Show
            Diamond Exposition in Paris
            Opal Symposium 2001
            ICA Congress
            Geochemistry and Mineralogy of Gemstones Symposium.

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Publish Year: 2000 Title: Summer 2000 Gem News International Abstract: Diamonds
            New Diamond Cut: “Tycoon Cut”
            Diamond Presentations at the PDAC Conference
            Israel’s 2nd International Rough Diamond Conference
Colored Stones and Organic Materials
            Baltic Amber with Lizard Inclusion
            Ametrine with Layers of Smoky Quartz
            Bicolored Cat’s-Eye Beryl from Pakistan
            Natural Emerald and Quartz Intergrowth
            Update on Some Madagascar Gem Localities
            Freshwater Cultured “Kasumiga Pearls,” with Akoya Cultured Pearl Nuclei
            Trapiche Ruby: An Update
            Spinel from Ilakaka, Madagascar
Treatments
            Unusual Treated Chalcedony
Synthetics and Simulants
            Black Diamond Imitation
Announcements
            Tenth Annual Cutting Edge Awards
            The Dresden Green at the Smithsonian
            Gem 2000
            Mineralientage München
            Gemstones at Upcoming Scientific Meetings

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Publish Year: 1999 Title: Winter 1999 Gem News International Abstract: Diamonds
            Can Angolan Diamonds be Identified by Country of Origin?
            A Visit to Venezuelan Diamond Mines
Colored Stones and Organic Materials
            Matte-Finished Montana Agates
            Dickite: Consider the Odds
            Star Ekanite
            “American Golden Opal” from Nevada
            The Formation of White Zones in Mexican Opals During Fashioning
            An Update on the John Saul Ruby Mine
            Ruby from Songea, Tanzania
            Another Source for Bicolored Sapphire: Tunduru, Tanzania
            Spessartine from Nigeria
            Tremolite Rock from China Represented as “Longxi Jade.”
            Tsavorite from Madagascar
Treatments
            The Chemistry of Emerald Fillers
            Hematite Coating on Heat-Treated Garnet
            Factors in the Heat Treatment of Corundum
Synthetics and Simulants
            Manufactured Products Imitating Charoite
Miscellaneous
            More on “Internal” Carving: Now Done to Synthetic and Natural Quartz
Announcements
            Basel 2000
            International Rough Diamond Conference
            ISA Personal Property Appraisal Courses
            Kremlin Gold at the Houston Museum of Natural Science
            Treasures from Topkapi Palace
            West Coast Antique & Period Jewelry Seminar 2000
            Gemstones at Upcoming Scientific Meetings

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Publish Year: 1999 Title: Summer 1999 Gem News International Abstract: Diamonds
            Diamond Presentations at the PDAC Conference
            Diamond Octahedra in Jewelry
            First Diamonds from the Merlin Project, Australia
            A Review of “GE-Processed” Diamonds
Colored Stones and Organic Materials
            International Colored Gemstone Association Congress
            Andradite (Including Demantoid) from Canada
            Trapiche Cat’s-Eye Emeralds
            Natural Pearls from the Northern Cook Islands
            Twelve-Rayed Star Sapphire from Madagascar
            Blue, Pink, and Purple Sapphires from Ilakaka, Madagascar
            Other Gems from Near Ilakaka
            Tanzanite Fluorescence: A Seldom-Noted Property
            Tanzanite Mining Update
            A New Source for Tsavorite
Synthetics and Simulants
            Synthetic Beryl Showing Zoned Pleochroism
            Polymer-Impregnated Synthetic Fire Opal from Kyocera
Miscellaneous
            A New Cut for Colored Stones
            Pearl Branding: “Utopia” Cultured Pearls
Announcements
            Hong Kong Jewellery & Watch Fair ‘99
Cartier at the Field Museum
            Gem Conference 99
            Jewellery Arabia 99

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Publish Year: 1999 Title: Spring 1999 Gem News International Abstract: TUCSON 1999
Diamonds
            Fashioned Diamonds from the Ekati Mine, Northwest Territories, Canada
            Synthetic Diamonds Widely Available
Colored Stones and Organic Materials
            Cat’s-Eye Andradite from San Benito County, California
            An “Enhydro” Emerald from Colombia
            Abundant Eudialyte
            New Cuts for Oregon Sunstone
            Near-Colorless Forsterite
            “Watermelon Garnet”
            New Deposits in India and Nepal
            Iolite and Other Gems from Canada
            Jasper “Planets”
            Opal in Matrix from Brazil
            White and Pastel Chinese Freshwater Cultured Pearls
            Drusy Quartz “Leaves”
            Twelve-Rayed Star Quartz from Sri Lanka
            New Finds of Spessartine in Brazil
Treatments
            “Blatant” Dyed Pearls
Synthetics and Simulants
            Fused Silica Glass, Sold as “Cultured Snow Quartz”
            Blue Slag Glass from Sweden, Resembling Opal
            Imitation “Chinese Freshwater” Cultured Pearls
            Synthetic Zincite Possibly Represented as Sphalerite
Miscellaneous
            Drill Holes as Design Elements: Michael M. Dyber and “Luminaires”
            Using Mineralogical Techniques to Solve Gemological Problems
            Part 1: Internal “Becke Lines” in Spinel
            Part 2: “Plato Lines” and Growth Structures In Synthetic Corundum

Announcements
Nature of Diamonds at the San Diego Natural History Museum
            New Exhibit at the Royal Ontario Museum
            International Colored Gemstone Association Congress
            International Gemological Symposium
            International Society of Appraisers Conference
            Gemstones in Upcoming Scientific Meetings

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Publish Year: 1998 Title: Winter 1998 Gem News International Abstract: Diamonds
            Diamond Production Starts at Canada’s Ekati Mine
Financial Times Diamond Conference
Colored Stones
            Colored Stone Presentations at the International Mineralogical Association Meeting
            Chalcedony with Goethite Inclusions from Madagascar
            Iolite Gemologically Indistinguishable from Feldspar
            New Features of Montana Sapphires: Gold is Where You Find It
            Highly Translucent Green Serpentine from Afghanistan
            Etch-Decorated Topaz
            Red, Pink, and Bicolored Tourmaline from Nigeria
Treatments
            On the Burning of Polymer-Impregnated Synthetic and Natural Opals
            Irradiated Inclusions in Topaz
Synthetics and Simulants
            Obsidian Imitation
            Diffusion-Treated Synthetic Sapphire
Announcements
            Indonesian South Sea Pearl Auction
            Congratulations to Gems & Gemology

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Publish Year: 1998 Title: Fall 1998 Gems News International Abstract: Diamonds
            Diamonds at the International Mineralogical Association Meeting
            Update on the Ekati Project, Northwest Territories, Canada
Colored Stones
            Amethyst from Arizona
            Andradite Garnet from Yemen
            Danburite from San Diego County, California: A Potential Gem Mineral
            Application of Large-scale Mining Techniques to Colombian Emeralds
            Gem-Quality Grossular Garnet from Mali
            Pyrope-Spessartine Garnet from Madagascar
            Color-Change Pyrope-Spessartine Garnet, Also From Madagascar
            Hackmanite from Myanmar
            “Striped” Labradorite Feldspar
            Colorado Lapis Lazuli
            Pearls Highlighted at the 2nd International Jewellery Show in Kobe, Japan
            Vietnamese “Trapiche” Rubies
            “Sliders”: Rutile Inclusions in Quartz
            Sapphire from the Ural Mountains, Russia
            Sapphirine: Gems & Gemology Reader to the Rescue
Treatments
            Radioactive Rubies
Synthetics and Simulants
            Gallium Phosphide, Resembling Fancy Dark Orange Diamond
            Unusual Jade Look-Alike
            “Wild Life” Assembled Gemstone Cabochons
Announcements
            Rossmanite, a New Variety of Tourmaline

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Publish Year: 1998 Title: Summer 1998 Gem News International Abstract: Diamonds
            Diamond Exploration in Alberta, Canada
            Anticipated Production in the Northwest Territories
            International Rough Diamond Conference in Israel
Colored Stones and Organic Materials
            “Flame Agate”: What’s in a Name?
            Update on Benitoite Mining
            Beryl from Madagascar: Aquamarine
            Trapiche Beryl
            “Almost Blue” Sri Lankan Color-Change Garnets
            Cat’s-Eye Opal from Tanzania
            Of Rubies and Rubles
            Star Sapphire from Madagascar
Treatments
            Jadeite Boulder Fakes
            Titanium- and Gold-Coated Drusy Materials in Jewelry
            Surface-Treated Topaz
Instrumentation
            New Faceting Machine
Announcements
            AGTA Announces Tanzanian Miners’ Relief Effort
            Birthstone Exhibit at the Carnegie Museum.
            Ninth Annual Conference of the Canadian Gemmological Association

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Publish Year: 1998 Title: Spring 1998 Gem News International Abstract: TUCSON ‘98
Diamonds
            Gem Crystals from Russia and China
Colored Stones and Organic Material
            Andalusite (Chiastolite) Sphere
            Coral with a Blue Sheen from Alaska
            Bicolored Corundum
            Emerald from Tocantins, Brazil
            Spessartine Garnet from Madagascar
            Sphene from Madagascar
            Spinel from Vietnam
            Parti-Colored Faceted Liddicoatite Tourmaline
            Another Tourmaline Source in Namibia
Synthetics and Simulants
            Synthetic Amethyst Grown Over Round Seeds
            “Glass stones”: Imitation Agates
            Synthetic Moissanite from Russia
Instrumentation and Techniques
            Buff-Top Faceted Stones Cut from Quartz Spheres

MORE FROM THE 26TH INTERNATIONAL GEMMOLOGICAL CONFERENCE
Colored Stones and Organic Materials
            An Unusual Organic “Gem”: Bezoar
            Gem-Quality Transparent Feldspar from North America
            Libyan Desert Glass
            Maw-Sit-Sit from Myanmar
            An Opal Nomenclature
            Identifying Natural Opal in the Field
            Kashmir Rubies
            Gemstones of Switzerland
Synthetics and Simulants
            First Commercial Synthetic Ametrine from Russia
Instrumentation
            Cathodoluminescence and Photoexcitation Applications in Gemology

Announcements
            New Geologic Maps of Sri Lanka
            Nature of Diamonds Exhibit Extended
            International Mineralogical Association Meeting
In Memoriam
            Charles E. Ashbaugh III, 1944-1997
            Eugene Edward Foord, 1946–1998

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Publish Year: 1997 Title: Winter 1997 Gem News International Abstract: THE 26TH INTERNATIONAL GEMMOLOGICAL CONFERENCE
Diamonds
            Cathodoluminescence of Yellow Diamonds
            Diamond Inclusions in Corundum
            The Diamond Pipeline into the Third Millennium
            Mineral Inclusions in Large Yakutian Diamond Crystals
            The Morphology of Natural Gem Diamond
Colored Stones and Inorganic Material
            Identification of Amber by Laser Raman Microspectroscopy
            New Zealand ‘Kauri Gum’
            Inclusion-Related Fluorescence Zoning in Amber
            New Chrysoberyl Deposits in India
            Gem Corundum from Australia and Southeast Asia
            Bactrian Emeralds
            Emerald Origin
            Origin of Ancient Roman Emeralds
            Blue Quartz from Madagascar
            Ornamental Stones and other Gems from Bolivia
            Cultured Pearls from Indonesia
            Sapphires from Northern Madagascar
            Tunduru-Songea Gem Fields in Southern Tanzania
Synthetics and Simulants
            Imitation Pearls: So-Called “I Pearls” from Japan
            Growth-Induced Imperfections and Inhomogeneities in Single Crystals
            Surface Features and Growth Conditions of Quartz Crystals
            Reversible Twinning in an Unusual Synthetic Material
Treatments
            Heat Treatment of Garnets
            Titanium and Chromium Diffusion-Induced Star Sapphires
Announcements
            New Hall Opens at the Smithsonian Institution
            Diamonds at the American Museum of Natural History
            New Exhibits at the Cleveland Museum of Natural History
Gems & Gemology Wins ASAE Award – Again!

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Publish Year: 1997 Title: Fall 1997 Gem News International Abstract: Diamonds
            Extreme Wear on Diamonds
            How Many Diamonds Are There in Arkansas?
Colored Stones and Organic Material
            Prospecting for Beryl in Saudi Arabia
            Lab Alert: Radioactive Cat's-Eye Chrysoberyls
            Demantoid Garnets from Russia
            Namibian Demantoid Garnets
            A Gem-Quality Ettringite Group Mineral, Probably Sturmanite
            Bicolored Grossular-Andradite Garnets from Mali
            More on Opal from Shewa, Ethiopia
            Gem Rhodonite from Australia
Treatments
            “Pink Geuda” Sapphires from Vietnam and Their Treatment
Synthetics and Simulants
            Change-of-Color Synthetic Sapphires Represented as yet Another “New Find”
            GGG from Russia
Miscellaneous
Gems & Gemology Author Wins European Cutting Competition
            Standards Issued for the Jewelry Industry in China
Announcements
            Dates Set for February 1998 Tucson Shows
            Visit Gems & Gemology in Tucson
            International Society of Appraisers

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Publish Year: 1997 Title: Summer 1997 Gem News International Abstract: Diamonds
            Conference on Diamond Technology
            A “Piggyback” Diamond Assemblage
            Synthetic Diamond Thin Film Jewelry
Colored Stones and Organic Material
            Color-Zoned Amethyst from Thunder Bay, Ontario, Canada
            Blue- and Multicolor-Sheen Moonstone Feldspar from India
            “Watermelon” Sunstone Feldspar Carving
            Musgravite: A Rarity among the Rare
            Faceted Cultured Pearls
            Inclusions in Quartz as Design Elements
Treatments
            A New Emerald Filler
Synthetics and Simulants
            Update on Vanadium-Bearing Synthetic Chrysoberyl
            “Cat’s-Eye” Synthetic Emerald
            Emerald Rough: Buyer Beware!
            An Especially Misleading Quench-Crackled Synthetic Ruby
            New Information on Flux-Grown Red Spinel from Russia

To view the full section, download the PDF above. @topic:8


Publish Year: 1997 Title: Spring 1997 Gem News International Abstract: TUCSON ‘97
Diamonds
            "Opalescent" and other Unusual Diamonds
            Diamond "Pearls"
Colored Stones
            Andradite from Arizona
            Carved Aquamarine with Natural Crystal Faces
            Cat's-Eye Chrysoberyl
            Unusual Trapiche Emerald
            The Return of Jet
            "Bicolor" Labradorite
            "Rainbow" Obsidian Hearts
            Botryoidal White Opal from Milford, Utah
            Petrified Palm Wood as an Ornamental Material
            Drusy Iridescent Pyrite from Russia
            "Wasp-Tail" Citrine/Smoky Quartz
            Quartz with "Rainbow" Hematite Inclusions
            And with Pyrite Inclusions
            Orange Sapphire and other Gems from the Tundura Region
            Tanzanite in Abundance: Gem Carvings and "Enhydro" Crystal Section
            Tourmaline from the Neu Schwaben Region, Namibia: a Major New Player
Treatments
            Gold-Electroplated Jade and Silver Ore
Synthetics and Simulants
            Assembled Stones Using Inset Gem Material
            Red and Purple Hydrothermal Synthetic Beryl
            Dichroic Glass as an Opal Imitation
            Aventurescent Synthetic Quartz
            Synthetic Opal in Glass
Miscellaneous
            "Amphoragems"
Announcements
Gems & Gemology Wins Three Out of Five

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Publish Year: 2000 Title: Synthetic Gem Materials and Simulants in the 1990s Abstract: The 1990s witnessed important developments in the commercial viability of gem-quality synthetic diamonds. Improvements in, and new applications for, existing synthesis processes in the production of colored stones such as ruby, sapphire, emerald, quartz, and alexandrite have had an impact as well. The development and commercialization of a variety of new synthetics and simulants, such as synthetic moissanite and flux-grown synthetic spinel, also played an important role in shaping the past decade for the gem and jewelry industry. @topic:8


Publish Year: - Title: Winter 2009 Gem News International Abstract: Colored Stones and Organic Materials
            Benitoite: Update on Faceting and Jewelry Manufacturing
            Large Cat’s-Eye Beryl from India
            Emeralds Recovered Using New Techniques at the Kagem Mine, Zambia
            Yellow Grossular from Tanzania
            A Most Unusual Blister Pearl
            Myanmar Cultured Pearl Production and New Gem Localities
            Phenakite from Nigeria
            Update on Rubies from Mozambique
            Transparent, Bright Blue Sodalite from Afghanistan
            Pseudo-Chatoyancy and Pseudo-Asterism in Sphalerite from Spain
            Update on Cu-Bearing Tourmaline Mining in Mozambique
            New Find Of Pink-To-Red Tourmaline in Nigeria
Synthetics and Simulants
            Hydrothermal Synthetic Emerald Sold as Natural Rough from Russia
            High-RI Barium-Zirconium Glass Imitation of Peridot and Other Gems
            Silicon Inclusions in Black Synthetic Moissanite
            Dyed Sillimanite as an Emerald Imitation
Treatments
            Dyed Pink Alabaster
Conference Reports
            31st International Gemmological Conference
            2009 NAG Institute of Registered Valuers’ Conference

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Publish Year: - Title: Spring 2009 Gem News International Abstract: Tucson 2009
            New Play-of-Color Opal from Welo, Ethiopia
            Gem-Quality Rhodochrosite from China
GNI Regular Features
Colored Stones and Organic Materials
            Gem-Quality Amethyst from Tata, Morocco
            Anahí’s “New” Ametrine
            Azurite/Malachite from Sonora, Mexico
            Light Yellow-Green Grossular from Kenya
            Kornerupine (Prismatine) from Tanzania
            Transparent Labradorite from Ketchikan, Alaska
            Gem News from Myanmar
            Interesting Natural and Synthetic Spinels
            Zoisite from Afghanistan
Inclusions in Gems
            Australian Chrysoprase with Dendritic Inclusions
            Ankangite and Celsian Inclusions in Quartz from Brazil
            “Paraíba” Quartz with Copper Inclusions from Brazil
Synthetics and Simulants
            Artificial Glass Showing Color Change When Exposed to Light
            Some Unusual Dyed Imitations
Conference Reports
            International Kimberlite Conference

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Publish Year: 1996 Title: Winter 1996 Gem News International Abstract: Diamonds
            Diamonds from Kelsey Lake, Colorado
            Update on Synthetic Diamonds in Jewelry
Colored Stones
            Natural "Carvings"
            A New Chalcedony Locality
            Cat's-Eye Emerald from Colombia
            An Update on Emerald Mining at the Muzo Mine
            A Second Sri Lankan Locality for Color-Change Garnet
Synthetics and Simulants
            Composite Tablets, Imitation "Anyolite"
            Bahamian Beauties
            An Ancient Tibetan Pendant, Represented as a Meteorite
            An Unusual Fashioned "Tricolor" Synthetic Quartz
            Another Tanzanite Imitation: Synthetic Spinel Triplets
Instrumentation
            International Conference on Raman Spectroscopy and Geology
Miscellaneous
            Synthetic Sapphire Assemblage with a Gold "Fractal" Design
            Completely Internal "Carving" of Glass

To view the full section, download the PDF above. @topic:2


Publish Year: 1996 Title: Fall 1996 Gem News International Abstract: Diamonds
            Chatham Synthetic "White" Diamonds at JCK Show
            Diamond Novelty-Cut as a Seated Buddha
Colored Stones
            Nonphenomenal Vanadium-Bearing Chrysoberyl
            Large Faceted Chrome Diopsides
            "Rose" Colored Plagioclase-Corundum Rock from Sri Lanka
            Quartz-Magnesite Rock, so-Called "Lemon Chrysoprase," from Australia
            Update on Madagascar Sapphires
            Spessartine from Pakistan
            Activity Continues at the Capão do Lana "Imperial" Topaz Mine
            Gem Materials from Vietnam
Treatments
            Coated Quartz in "Natural" Colors
Synthetics and Simulants
            Flexible "Crystal" Fabric
            Fiber-Optic Glass Imitation of Tiger's-Eye
Miscellaneous
            Versatile Jewelry

To view the full section, download the PDF above. @topic:2


Publish Year: 1996 Title: Summer 1996 Gem News International Abstract: Diamonds
            Diamond with a Fluorescent Phantom Crystal
            Tairus Synthetic Diamonds in Jewelry
Colored Stones
            Anorthosite Rock with Uvarovite Garnet "Speckles"
            Update on Porous Chrysocolla-Colored Chalcedony
            Chatoyant Clinochlore from Russia
            Cat's-Eye Diopside from Southern India
            Garnets from Mozambique
            Green-and-White Jadeite from Russia
            Visit to Myanma Gems Museum
            Variegated Translucent Jasper from Mexico
            An Unusual Morganite
            Scottish Pearls
            Rubies from Madagascar
            Sapphire Mining in Kanchanaburi
            Update on Tanzanite Mining
            "Golden" Tourmaline from Kenya
Treatments
            Novel Opal Doublets from Brazil
            Sapphires with "Induced" Stars
Synthetics and Simulants
            Manufactured Composite Material Imitating Jadeite
            "Drusy" Silicon, a Computer-Industry By-Product
            A Convincing Tanzanite Substitute
            "Tavalite," Cubic Zirconia Colored by an Optical Coating
Announcements
            Sixth Annual Cutting Edge Awards
            Gem-Related Exhibits at American Museums
            Special Synthetics Exhibit at the Sorbonne

To view the full section, download the PDF above. @topic:2


Publish Year: 1996 Title: Spring 1996 Gem News International Abstract: TUCSON ‘96
Diamonds
            Matrix Diamond Specimens from China and Russia
            Synthetic Diamonds Are in the Marketplace
            Synthetic Moissanite as a Diamond Simulant
Colored Stones
            Color-Change Garnet
            Heliodor from Tajikistan
            "Leopard Opal" from Mexico
            Cultured Abalone Pearls
            Update on Namibian Spessartine
            Large Taaffeite Crystal from Sri Lanka
            Tanzanite Beads
            Gem Materials from the New Locality at Tunduru, Tanzania
Enhancements
            Update on Polymer-Impregnated Malachite
Synthetics and Simulants
            Beryl Triplets Imitating Paraiba Tourmaline
            Faceted Quartz Construct
MORE FROM THE 25TH INTERNATIONAL GEMMOLOGICAL CONFERENCE
Diamonds
            Fingerprints of Natural Diamonds: Observations with Cathodoluminescence
Colored Stones and Organic Materials
            Mineral Inclusions in Quartz
            Montana Sapphires
            Sapphires and Rubies from Laos
Enhancements
            Durability of Polymer-Impregnated (B-Type) and Natural Jadeite
Instrumentation
            Infrared Spectroscopy of Thai Rubies and Sapphires
            Infrared Spectroscopy Distinguishes Synthetic from Natural Emerald and Quartz
Miscellaneous
            Gems from Archeological Excavations in Rome (Crypta Balbi)
            Gems in a Visigoth Treasure
Announcements
            Treasures of Mexico Exhibit at the Houston Museum

To view the full section, download the PDF above. @topic:2


Publish Year: 1995 Title: Winter 1995 Gem News International Abstract: THE 25TH INTERNATIONAL GEMMOLOGICAL CONFERENCE
Diamonds
            Fluid Inclusions in Diamonds
            Some Historical Trends in the Diamond Industry
Colored Stones
            New and Unusual Inclusions in Amber and other Gems
            Green Beryl and Emerald from Central Nigeria
            Red Beryls from Utah
            Gem Localities in China
            Colored Stones Seen by CISGEM Laboratory
            New Gem Deposits in Shan State, Myanmar
            New Emeralds from Southern India
            Natural Glass: Tektites
            Jade Market in Mandalay
            Jadeite Lapidaries in Myanmar
            Freshwater Natural Pearls from the Lac St. Jean Area, Quebec
            Unusual Pearls
            Rubies from the Barrington Volcanic Field, East Australia
            Ruby Market in Taunggyi
            Sapphire Mining in Laos
            The Sapphire Deposit in Southern Madagascar
            Scapolites from New Discoveries in Sri Lanka
            Tanzanites and other Zoisites from Merelani, Tanzania
Synthetics and Simulants
            Russian Flux-Grown Synthetic Alexandrites
            GGG as a Corundum Fake
Instrumentation
            The Lapidary as a Gemological Resource
            Nuclear Microscopy of Rubies
            Raman Spectrometers
            Brewster Angle Refractometer
Miscellaneous
             Gems in Ancient Jewelry
Announcements
Gems & Gemology Wins Again

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Publish Year: 1995 Title: Fall 1995 Gem News International Abstract: Diamonds
            Diamond with Mobile Diamond Inclusion
            Update on Russian Diamond Mining
            Spy Ship Looks for Diamonds
Colored Stones
            Cat's-Eye Apatites from Madagascar
            "Eilat Stone" from Israel and Peru
            Six-Rayed Star Emerald
            Faceted Genthelvite: A Gemological First
            "Drusy" Hausmannite
            Costa Rican Jade Museum
            Green Opal from Serbia
            "Deep" Quartz from Africa
            Egyptian Green Quartz
            Quartz with "Hematite" Inclusions
            Aromatic Resin Necklace: A form of Myrrh?
            Update on Mong Hsu Ruby
            Rubies and Sapphires from North Carolina
            Purple Scapolite from Tajikistan
            Large Spinel from Tajikistan
            Color-Change Zircons
Enhancements
            Impregnated Malachite
Synthetics and Simulants
            Unusual Color-Zoned Synthetic Amethyst
            More on Czochraski "Pulled" Synthetic Sapphires
            Tanzanite-Colored Synthetic Sapphire
            Natural and Synthetic Quartz "Constructs"
Announcements
            Dates Set for February 1996 Tucson Shows
            Education at the Tucson AGTA GemFair
            Visit Gems & Gemology in Tucson
            More GIA Tucson Show News

To view the full section, download the PDF above. @topic:2


Publish Year: 1995 Title: Summer 1995 Gem News International Abstract: Diamonds
            More Firms Processing Fracture-Filled Diamonds
            Synthetic Diamonds Misrepresented as Canadian Rough
Colored Stones
            Large Aquamarines from Nigeria
            Clinochlore and Other Rare Collector Stones from the Former Soviet Union
            Other Unusual Gems Seen at Tucson
            Phenomenal Feldspars from India
            Parti-Colored Fluorite from Brazil
            Unusual Opal Carvings
            Update on Opal from Ethiopia
            Sapphires from Madagascar
            Sapphires and Other Gems from Tanzania
            Spessartine Garnet from Namibia
Synthetics and Simulants
            Amber Simulant: Natural Resin in Plastic
            Update on "Recrystallized" Corundum
            Laser-Inscribed Synthetic Colored Stones
            Partially Devitrified Glass Imitation of Jadeite
            Iridescent Hematite Simulant
            Kyocera Plastic-Impregnated Synthetic Opals
            Platinum Alloy as an Ornamental Material
Instrumentation
            New Gemological Spectrometer at Tucson

To view the full section, download the PDF above. @topic:2


Publish Year: 1995 Title: Spring 1995 Gem News International Abstract: TUCSON ‘95
Diamonds
            New Diamond Cuts
Colored Stones
            Large Apatites from Madagascar
            Diaspore from Turkey
            Cat's-Eye and Trapiche Emeralds
            Emerald Necklaces Fashioned in India
            Garnets from Mali
            Fashioned Natural Glasses
            Fashioned "Rainbow" Hematite
            Iolite and Other Gems from Madagascar
            Iolite and Other Orissa Gems
            More Meteorite Products
            "Strawberry" Quartz and Other Russian Gems
            Miscellaneous Notes on Sapphires
            Sapphires from Tanzania
            Faceted Sphalerite and Other Collector Stones from Canada
            Swarovski Debuts Machine-Cut Gems
            Topaz and Beryl from the Ukraine
            Miscellaneous Notes on Tourmaline
Instrumentation
            Inclusion-Viewing System
            New Magnet for Gem Testing
Synthetics and Simulants
            Faceted Kashan Synthetic Rubies and Sapphires
            More Russian Synthetics and Simulants
            "Recrystallized" Synthetics
            Synthetic Zincite from Poland
            New Source of Synthetic Emeralds
Enhancements
            Diffusion-Treated Sapphires

To view the full section, download the PDF above. @topic:8


Publish Year: 1994 Title: Winter 1994 Gem News International Abstract: Diamonds
            Native Appalachian Diamonds
            Diamond Developments in Tanzania
            Other African Diamond Mining Ventures
            Canadian Diamond Rush Bruised but Still Alive
            Diamonds Found in Finland
Colored Stones
            Amethyst from Namibia
            Chatoyant Demantoid Garnet
            Color-Change Diaspore from Turkey
            Feldspar with Ruby Inclusions
            Gems from North Carolina
            More on Peridot from Pakistan
            Sapphire from Scotland
            Update on Montana Sapphires
            "Teal" Blue Cobalt-Colored Spinel
            Update on Sri Lanka
            "Zebra Stone" from Arizona
Synthetics and Simulants
            "Minkovite" from Russia
            Visit to Russian Synthetics Facility VNIISIMS...
            Additional Visits to Two Centers in Chernogolovka
            Miscellaneous Synthetics and Simulants
Announcements
            Visit Gems & Gemology at the Basel show

To view the full section, download the PDF above. @topic:2


Publish Year: 1994 Title: Summer 1994 Gem News International Abstract: Diamonds
            Argyle Upgrades Operation
            DeBeers's Rough Diamond Sales Up
            Diamond Pipes Located Outside Canada's "Corridor of Hope."
            More Evidence that Wisconsin Diamonds Come from Canadian Pipes
            Update on Ghana Production
            Russia Offers Rough for Sale
            Russia Develops Diamond-Cutting Equipment
            Production Plant Upgrade for Zimbabwe
            Near-Colorless Russian Synthetic Diamond Examined
Colored Stones
            Amber Marketed with Photomicrography
            Basel Fair Highlights
            Fluorite from California
            Gem Artistry Knows no Boundaries
            Green Gems from Australia
            Myanmar Liberalizes Gem Trading
            Freshwater Pearls from Bangladesh
            Tiger's-Eye Quartz Production Record in South Africa
            Cat's-Eye Sillimanite from Orissa, India
            "Wagon Wheel" Tanzanite
            Bicolored Topaz
            "Zebra" Stones from Australia
Enhancements
            New Emerald Treatment/Polishing Systems from Israel
Synthetics and Simulants
            New Emerald Imitation
            Kimberley Expands Product Line
            Minute "Machine-Cut" Synthetics
            Faceted Synthetic Opal
            Bright Yellow "Pulled" Synthetic Sapphires

To view the full section, download the PDF above @topic:2


Publish Year: 1994 Title: Spring 1994 Gem News International Abstract: Diamonds
            Cubic Zirconia Misrepresented as Diamond
Colored Stones
            Jade-Cutting Factory on the Myanmar-Thai Border
Enhancements
            Instability of Diamond Filling
            Coated Sapphires Misrepresented as Diffusion Treated
TUCSON ‘94
Colored Stones and Organic Material
            Arizona Gem Materials
            Emeralds from Brazil
            "Jurassic Park" Gems and Carvings
            Gems from Madagascar
            Myanmar Gems
            More on Obsidian
            Cat's-Eye Opal from Brazil
            Opal from Ethiopia
            Miscellaneous Notes on Peridot
            Russian Uvarovite Garnet
            Other Russian Materials
            Rubies and Other Gems from Orissa
            Miscellaneous Notes on Tourmaline
Enhancements
            Update on Diffusion Treatment
Synthetics and Simulants
            Beryl Triplets
            Chatham Flux-Grown Pink Synthetic Sapphires
            Douros Synthetic Rubies
            More on Russian Synthetics and Simulants

To view the full section, download the PDF above. @topic:8


Publish Year: 1993 Title: Winter 1993 Gem News International Abstract: Colored Stones
            Update on Colombian Emerald Mining
            Vietnamese Garnets
            Myanmar Mid-Year Emporium
            Update on Monghsu Ruby
            Ruby in Kyanite from India
            Rare Gemstones from Quebec
            Attractive Ornamental Marble
            Thai-Myanmar Jewelry Manufacturing Joint Venture
Enhancements
            Irradiated Phenomenal Quartz
Synthetics and Simulants
            Amber Simulant from India
            Artificial Glass with High R.I. and S.G.
            More on Vietnamese Deceptions
The 24th International Gemmological Conference
Diamonds
            Canada
            India
            Green-to-Blue Diamonds
            History of Diamond Cutting
Colored Stones and Organic Material
            Amphiboles
            Beryl
            Charoite
            Corundum
            Garnet
            Meteorites with Gems
            Natural Glass
            Opal
            Porcelaneous "Pearls"
            Quartz
Gemstone Enhancement
Synthetics
            Early Synthetics
            Russian Synthetics
            Douros Flux-Grown Synthetic Ruby
Instrumentation
Miscellaneous
            Early Collections
            Colored Stone Cutting

To view the full section, download the PDF above. @topic:2


Publish Year: 1993 Title: Fall 1993 Gem News International Abstract: Diamonds
            Argyle Production Update
            Central African Republic Has Strong Reliance on Diamonds
            CSO Names First Chinese Sightholder
            Indian Polished Exports Increase
            Russian Production High But Declining
            United States Sells Diamonds from Stockpile
            Zaire Faces Severe Mining Problems
Synthetic Diamonds
            Chatham Proposes Production, Distribution of Russian Synthetic Diamonds
            GIA Says Standard Tests Can ID Russian Gem-Quality Synthetic Diamonds
            Sumitomo Electric Synthesizes High-Purity Diamonds
Colored Stones
            Significant Amethyst Find in Maine
            Chalcedony Colored by Large Mineral Inclusions
            Massive Green Grossular Garnet from South Africa
            "Rainbow" Hematite from Brazil
            "Denim" Lapis Lazuli from Afghanistan
            Reddish Purple Mica from New Mexico
            Nepal Update
            Peridot from Vietnam
            Brazilian Paragonite Mistaken for Ruby
            Unusual Double Star Sapphire
            Black Spinel from Mexico
            Spinel from Vietnam
Enhancements
            World Diamond Congress Addresses Treatments
            Update on Ruby Enhancement
Synthetics and Simulants
            Glass Imitating Vietnamese Ruby
            Dyed Magnesite Misrepresented as "Howlite Lapis''
            Unusual Synthetic Blue Quartz
            Imitation Gems from Zaire

To view the full section, download the PDF above. @topic:2


Publish Year: 1993 Title: Summer 1993 Gem News International Abstract: Diamonds
            Botswana Produces Large Diamond
            DeBeers Now Marketing High-Quality, High-Pressure Synthetic Diamond Products
            DeBeers Offers CVD Industrial Synthetic Diamond Products
            "Flanders Brilliant" Cut Debuts in U.S.
            Sakha (Yakutia) Building up Diamond Reserves
            Venezuela Diamond Production Up
Colored Stones
            Blue Cancrinite from Greenland
            "Emerald Matrix" from North Carolina
            Gemstone Globe and Maps
            Lapidary Art
            Banded Iridescent Obsidian
            Gems from Orissa, India
            Cultured Freshwater Pearls from Hanoi, Vietnam
            Peridot from Zabargad Island
            Ornamental Porphyry from Canada
            Natural Resin from Colombia
            Ruby Mining near Mahenge, Tanzania
Enhancements
            Opticon Follow-Up
            Turquoise Treatment Stability
Synthetics and Simulants
            Synthetic Corundum as a Topaz Simulant
            Russian Flux-Grown Synthetic Emeralds
            Novel Opal Simulants
            More on Plastic Imitation Opal
            ''Synthetic Opal" from Russia
            More on Paraiba Tourmaline Simulants
            Color-Zoned Synthetic Blue Quartz
            Nontransparent Synthetic Quartz
            Synthetic Spinel from Eastern Germany
Announcements
            New Exhibit at the Royal Ontario Museum

To view the full section, download the PDF above. @topic:8


Publish Year: 1993 Title: Spring 1993 Gem News International Abstract: TUCSON ‘93
Diamonds
            Show Update
            Star-Cut Diamonds
Colored Stones
            Exceptional Iris Agates
            Baltic Amber
            Amethyst from Uruguay...
            . . . and Amethyst-Citrine from Bolivia
            Apatite from Brazil and Madagascar
            Uncommon Cat's-Eye Gems
            Gems with Natural Crystal Surfaces
            Beryls from the Ukraine
            Miscellaneous Notes on Emeralds
            Extraterrestrial Gem Materials
            Some Unusually Large Gems
            Jadeite from the Russian Federation
            Lapidary Art
            Opal from Canada
            Cultured Pearls from Tahiti, Australia, and China
            Natural Freshwater Pearls from Quebec
            "Peeling" Pearls
            Peridot from Ethiopia
            Red Quartz from Mexico
            Miscellaneous Fashioned Curiosities
            Transparent Rhodochrosite from Colorado
            Update on Rubies
            Miscellaneous Notes on Sapphires
            Spessartine Garnet from Africa
            Tourmaline from Paraiba, Brazil
            Parti-Colored Zoisites
Enhancements
            Apparatus for Fracture Filling Gems
Synthetics and Simulants
            Reconstructed Amber
            More "Pulled" Synthetic Materials Available
            Miscellaneous Emerald Simulants
Update
            1993 Burma Emporium
Announcements
G&G Wins Top Honor as Best Professional Journal

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Publish Year: 1994 Title: Fall 1994 Gem News International Abstract: Diamonds
            Update on Botswana Diamond Mining
            West African Diamond Mining
            Diamond Mining in Namibia
            South African Diamond Mining
            Update on Australian Diamond Mining
            Update on Diamond Production in the Former USSR
            Unusual Diamond Crystal
Colored Stones
            "Caymanite" from the Grand Cayman Islands, Caribbean
            Chrysoprase Chalcedony Matrix Carving
            Demantoid Garnet from Mexico
            News from Nepal
            Horse Conch "Pearls"
            Notable Round Black Cultured Pearl
            Peridot from Pakistan
            Yukon Rhodonite
            "Samotsvetov" Colored Stones Museum in Moscow
            "Trapiche" Purple-Pink Sapphire
            Gem-Inlaid Shell Jewelry
            Tourmaline with Atypical R.I. Reading
            Gem Production in the U.S
            Green Cat's-eye Zoisite
Enhancements
            Coated Jadeite
Synthetics and Simulants
            Synthetic Phenakite from Russia
            New Production Facility Inaugurated in Siberia
Instrumentation
            Russian Equipment for Diamond Sorting and Identification
Miscellaneous
            Sinkankas Book Honored

To view the full section, download the PDF above. @topic:8


Publish Year: 1992 Title: Winter 1992 Gem News International Abstract: Diamonds
            Indicators of Additional Diamond Pipes in Australia
            "Presidential" Diamond Cavity
            An Update on Diamond Research
            More Exploration in Tanzania
            Zimbabwe Diamond Find
Colored Stones
            Agate and Amethyst from Uruguay
            Amber from the Dominican Republic and the Baltic Region
            Unusual Aragonite
            Color-Change Burbankite-Related Mineral from Mont St. Hilaire, Quebec
            Dumortierite-in-Quartz Beads
            Feldspar-and-Amphibole Gem from Egypt
            Update on Golden Cultured Pearls
            Sri Lanka: Current Mining in Elahera
            Sri Lanka: Update on Gem Production
            Large Taaffeite
            New Joint Venture in Vietnam
            Update on Vietnam Gems
            Green Zoisite from Pakistan
Enhancements
            Filled Diamonds Marketed Under New Name
            Fracture Filling of Rough Diamonds Reported
            More on Irradiated "Black" Diamonds
            Interesting Treated Ornamental Sandstone
Synthetics and Simulants
            Update on Crystal Growth
            Attractive "Gem Construct"
            Extremely Small Synthetic Melee
            Synthetics Preset in Findings by "Automation"
            Large Hydrothermal Synthetic Ruby
            Assembled Imitation Watermelon Tourmaline

To view the full section, download the PDF above. @topic:8


Publish Year: 1992 Title: Fall 1992 Gem News International Abstract: Diamonds
            New Treatment Plant at Alexander Bay
            Results of Canadian Bulk Sampling
            British Crown Jewels to Move in 1994
            India Plans Increased Mining
            Expansion at Jwaneng
            Diamonds from Myanmar
            Venetia Mine Officially Opens
            Diamond-Cutting Plant in Vietnam
Colored Stones
            Amber with Insect "Inclusion"
            More Amber from Russia
            Blue Chalcedony from Montana
            An Unusual Zoned Specimen
            Diopside from Tanzania
            Ironstone Matrix as a Carving Material
            Mansfieldite Gemstone Egg
            Pearls from Baja California
            Natural Pearls from the New World
            Large South Seas Pearl Illustrated
            Pearl Culturing in Venezuela
            Faceted Ruby from Longido, Tanzania
            Sapphires from Madagascar
            Pennsylvania Sphalerite
            Tourmaline with Distinctive Inclusions
Enhancements
            Diffusion-Treated Sapphire Cabochons Sold as Natural
            Kit with Colored Fracture Filler
            Update on Dyed Green Quartz
            New Ruby Treatment
Synthetics and Simulants
            New Synthetic Alexandrite
            Glass from Mount Saint Helens Rock
            Unusual Assembled Glass Imitation
            Another Assembled Imitation Crystal Opal
            Natural-Appearing Synthetic Rubies on the Thai-Myanmar Border
            A New Twist to Imitations of Vietnamese Ruby
            Assembled Imitation Bicolored Tourmaline
In Memoriam
            Mr. Vahan Djevahirdjian of Hrand Djevahirdjian S.A.

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Publish Year: 1992 Title: Summer 1992 Gem News International Abstract: Diamonds
            Claim-Staking Rush in Canada
            International Diamond Technical Symposium in Israel
            Prospecting Reveals Kimberlite Pipes in Ukraine
            Small Industrials in Uzbekistan
            DeBeers and the Republic of Sakha Sign Sales Agreement
            Visit to a Small Diamond-Mining Operation in South Africa
            DeBeers Signs Prospecting Agreement with Tanzania
            Zaire Produced Fewer Diamonds
            Zaire Tightens Trade Regulations
Colored Stones
            Exotic "Jewel" Beetles
            Cat's-Eye Golden Beryl
            Garnets from Egypt
            Large Jadeite Boulder
            Gemstones from Laos
            Attractive Meteorite Jewelry
            Black Mabe "Pearls" and Simulants (from Nautilus Shell)
            Rare Gemstones from Quebec
            Tajikistan to Develop Gem Resources
Enhancements
            Acrylic Coating of Gem Materials
            Dyed Massive Beryl and Quartz Resembling Ornamental Gems
            Beryl Beads with Multiple Color Enhancements
            Treatable "Concrete" Opal
            Silver-Nitrate-Treated Matrix Opal
            Modern-Day Turquoise Oiling
Synthetics and Simulants
            Assembled Imitation Emerald Crystal
            Update on Nontransparent CZ
            Bicolored CZ
            Blue Spinel from Vietnam as Sapphire Imitator
            Glass Imitation Tourmaline Crystal
            More Synthetics Sold as Natural Rubies from Vietnam
            Experimental Synthetic Sodalite from China
Instrumentation
            Low-Cost Quartz Wedge Simulator

To view the full section, download the PDF above. @topic:2


Publish Year: 1992 Title: Spring 1992 Gem News International Abstract: TUCSON ‘92
Diamonds
            Colored Diamonds
Colored Stones
            Unusual Fire Agate
            Fine Amazonite from Brazil
            Baltic Amber More Plentiful
            Faceted Apatites from Madagascar
            African Aquamarine
            Axinite from Russia
            Beryl from Russia
            Chrysocolla-Colored Chalcedony from Mexico
            Commercial "Fantasy" Cuts
            Cat's-Eye Emerald
            Moldavite Plentiful
            Eire Opal from Mexico
            Update on Peridot
            Pietersite from Namibia
            Rubies and Sapphires from Vietnam
            New Ruby Deposit in Namibia
            Australian Ruby
            Rubies and Pink Sapphires from Azad Kashmir, Pakistan
            Ruby in Zoisite
            Chinese Blue Spinel
            Tourmaline from Paraiba, Brazil
            Fine Tourmalines from Africa
            Green Zoisite from East Africa
            Rare Gemstones from Mont St. Hilaire
Enhancements
            Update on Diffusion-Treated Sapphires
            Blue Enhanced Opal
            Irradiated Green Topaz
Synthetics and Simulants
            Synthetic Alexandrite Gets New Name
            More on Hydrothermal Synthetic Beryls
            Colored CZ Plentiful
            Rare Laboratory-Grown Crystals
            Magnetic "Pierceless Earrings"
            Another Chatoyant Glass
            Novel Crystal Opal Imitation
            Faceted Synthetic Quartzes
            Knischka Synthetic Rubies
            Synthetic Blue and Green Sapphires Grown by Czochralski Pulling
            Titanium-Doped Synthetic Pink Sapphire
            Imitations of Sugilite and Other Nontransparent Gems
            Faceted Colored YAG
            YAG as an "Ornamental" Material
Instrumentation
            Instrument for Detecting Diffusion Treatment

To view the full section, download the PDF above. @topic:8


Publish Year: 1991 Title: Fall 1991 Gem News International Abstract: Diamonds
            Argyle Set to Expand with Mining at Home
            Argyle Also Plans to Expand Cutting in China
            Operations Re-Established at Elizabeth Bay
            Warnings of Large-Scale Theft
            New Soviet Diamond Source
            Additional Diamonds Recovered at Fort a La Corne, Saskatchewan, Canada
            Conference on Synthetic Diamond and Diamond-Like Coatings
            New Diamond Cuts
            Historical Diamond Photographs
Colored Stones
            Colombia Reports Record Emerald Exports
            Large South Sea Pearl
            Myanmar to Authorize Thai Buyers
            Postage Stamp Commemorates Large Burmese Ruby
            Small-Scale Sapphire Mining Continues in Thailand
            Tanzanian Spinel
            Update from Tanzania
            Tanzania Invites Tenders for Mineral Rights
            Large Paraiba Tourmalines
            Tourmaline with Unusual "Color Change."
            Tourmaline/Andalusite: A Pleochroism Caveat
            Purple and "Chrome" Green Vesuvianites from Quebec
            Unusual Red Zoisite
Enhancements
            Faceted Gems Coated with Diamond-Like Carbon
            Montana Sapphire Heat Treatment
            More Experimentation with Blue Diffusion-Treated Sapphires
            Red Stones Also Experimented With
Synthetics and Simulants
            Porous Gilson Synthetic Opal
Instrumentation and New Techniques
            Distinguishing Diffusion Treatment from Surface Coating
            New Setting Method Challenges Diamond Testers
            Jewelry Imaging/Teleconferencing System Introduced
            Tweezer Improvement
Announcements
            Tucson Gem and Mineral Show 1992
            American Craft Assn. Supports Legislation

To view the full section, download the PDF above. @topic:8


Publish Year: 1991 Title: Spring 1991 Gem News International Abstract: Tucson ‘91
            Show Exhibits of Note
Diamonds
            Colored Diamonds
            Gem-Quality Synthetic Diamonds from the USSR
Colored Stones
            Madagascar Apatite
            Interesting Bead Materials
            Cat's-Eye Beryllonite
            Large Clinohumite
            Update on Corundum
            Unusual Colored Stone Cuts from Thailand
            Drusy Gems in Jewelry
            Uralian Emeralds
            Morganite from Mozambique
            Brazilian Opal
            Cultured Pearls
            Arizona Peridot
            Bicolored Quartz
            Cat's-Eye Rose Quartz
            Rhodolite from Orissa
            Violet Cat's-Eye Scapolite
            Update on Tanzanite
            Paraiba Tourmaline
            More on Vietnam Gem Finds
Enhancements
            Plastic-Treated Ammonite
            Enhanced Paua Shell
            Colored Opticon for Emeralds
            Heat Treatment of Ruby in Sri Lanka
            More on Diffusion-Treated Sapphires
Synthetics and Simulants
            New Synthetic Alexandrite
            Update on Chatham Production
            More on Synthetic Emeralds
            Man-Made Hematite Simulant
            Imitation Lapis Lazuli
            Gold in Quartz Doublets
            More Soviet Synthetics

To view the full section, download the PDF above. @topic:8


Publish Year: 1990 Title: Winter 1990 Gem News International Abstract: Diamonds
            DeBeers Announces World's Largest Synthetic Diamond Crystal
            China-Cut Diamonds Sold in Singapore
            Guyana Mining Development
Colored Stones
            Possible Foreign Participation in Afghan Mining
            Novel Assembled Stone
            Black Coral Industry on the Mexican Caribbean
            Update on Sapphire Mining in Kanchanaburi
            Peace Pact for Colombian Emerald Region
            Unusual Color-Zoned Garnet
            Heavy Liquids Studied in Australia
            Black Cat's-Eye Opal
            Exceptionally Large White Opal
            Color-Change Cobalt Spinel
            Large Topaz Sculpture
            Cat's-Eye Bicolored Tourmaline
            More Gems from the USSR?
Enhancements
            Diffusion-Treated Sapphire Update
            "Rainbow" Quartz: A New Enhancement
            Jade "Processing"
Synthetics and Simulants
            Natural-Appearing Synthetic Cabochons
            Thailand Cutting CZ
            Glass Imitation Jadeite
            A Glass Imitation Pectolite?
            Dyed Quartz Imitation of Sugilite?

To view the full section, download the PDF above. @topic:8


Publish Year: 1990 Title: Fall 1990 Gem News International Abstract: Diamonds
            Diamond Prospects in Brazil
            New Venture in Botswana
            New Sierra Leone Mining Policy
            Australian Firm Prospecting in China
            Goa, India, Seeking Diamond Merchants
            Prospects in India Worsen
            Diamond Prospecting in India
            Revised Figures for Kalimantan
            Sri Lanka Attracting Diamond Industry Investment
            Thailand Auctions Smuggled Diamonds
            New Diamond Discovery in USSR
            Soviet Delegation Visits Israel
            Eastern Europe Opens to Diamond Cutters
            Diamond Rush in Australia
Colored Stones
            Ancient Mushroom Inclusion in Amber
            Greenish Blue Cat's-eye Apatite
            Zimbabwe Emerald Update
            Unusual Cat's-eye Diopside
            Fine-Quality Chatoyant Iolite
            Gem Finds in Inner Mongolia
            Opal with True Chatoyancy
            Star Scapolite
            More Activity at the Sugilite Mine
            Unusual Carved Tanzanite
            Cat's-Eye Tanzanite
Enhancements
            Faceted Gems with Aqua Aura Enhancement
            New Opal Enhancement
            "Plastic"-Coated Sugar-Treated Opal
Synthetics and Simulants
            Knischka Synthetic Ruby Update
            Fluorite Imitating Emerald
            Imitation Jade Carving
Announcements
            Tucson Gem and Mineral Show 1991
            International Gemological Symposium 1991
            Updates from the State Gem Corporation of Sri Lanka

To view the full section, download the PDF above. @topic:8


Publish Year: 1990 Title: Summer 1990 Gem News International Abstract: Diamonds
            Scientists Research Material as Hard as Diamond
            Malaysia Diamond Plant
            Botswana Beats Target
            Soviet-Singapore Joint Venture
            New Area in Angola to be Mined
            Argyle Cutting School Near Beijing
            Kimberlite Find in the U.S.
            Diamond-Cutting Industry in Sri Lanka
            Tanzania Intensifies Mineral Search
            Prospecting in Botswana
Colored Stones
            Assembled "Plume" Agate
            Apatite "From Paraiba" and Apatite Purchased as Emerald
            Brazilian Chrysoprase
            Major Jade Deposits in Japan
            Attractive Chatoyant Assembled Opal
            Peridot Mining Update
            California Quartz Update
            Unusual Pseudomorph
            Rubies from Vietnam?
            Rock-like Material with Play-of-Color
            Cat's-Eye Topaz
            The Discovery of the Paraiba Tourmaline Mine
            Tourmaline Doublets
            "Treasure" Postage Stamp
Synthetics and Simulants
            Plastic Cameo Imitations
            Imitation Emeralds from Southern Africa
            Imitation Rhodochrosite Beads
Announcements
            Tiffany & Co. Donation to Smithsonian
            Donation of Citrine to Natural History Museum
            GemFire Exhibit at Cleveland Museum

To view the full section, download the PDF above. @topic:2


Publish Year: 1989 Title: Winter 1989 Gem News International Abstract: Diamonds
            Filled Diamond Update
            Diamond Exploration in Pilbara, Australia
            Increased Diamond Output in Botswana
            Ghana May Privatize Mines
            Diamond Cutting Expands in Mauritius
            Diamond Exploration on the West Coast of South Africa
Colored Stones
            Burmese Contract for New Mining Technology
            "Adularescent" Chalcedony
            Star Chrysoberyl from Sri Lanka
            Update on Hackmanite
            Psilomelane and Basalt: Novel Black Carving Materials
            Quench-Crackled, Dyed-Green Quartz
            Huge, Doubly Terminated Sapphire Crystal
            Sapphires Found in Burundi
            Mining Ventures are Reactivated in Southeast Asia
            Large Faceted Pamir Spinel
            Sri Lanka Update
            Paraiba Tourmaline Update
            Unusual Multi-Colored Tourmaline
Synthetics and Simulants
            Synthetic Corundum "Crystals"
            Flux Synthetic Spinel
            New Man-Made Crystal
Announcements
            Van Cleef & Arpels Exhibit at L.A. Museum
            Sinkankas Book in 3rd Printing
            Aurora Gem Collection
            Hong Kong Jewelry & Watch Fair
            Jewelex ’90 Korea

To view the full section, download the PDF above. @topic:8


Publish Year: 1989 Title: Fall 1989 Gem News International Abstract: Diamonds
            Increases in Diamond Sales
            Diamond Cutting in China
            Strained Relations between India and Australia
            Tests Under Way for Diamonds in Canada
            Australians Explore for Diamonds in the United States
            Joint Venture with DeBeers in Australia
            New DeBeers Mine in Namibia
Colored Stones
            Amethyst in Maine
            Amethyst Scepters from Malawi
            Amethyst-Citrine Update
            Fine Aquamarine from India
            Brazil Update
            Crystal Chandeliers Made by Nature
            Santa Terezinha Emerald Treatment
            Large Bicolored Sapphire
            Kanchanaburi Sapphires
            Underwater Treasure Hunt in Thailand
            Unusual Tourmalines from Brazil
Pearls
            Interesting Cultured Blister Pearl
Synthetics and Simulants
            Chinese "Jade" Update
            Imitation Opalized Shells
Announcements
            Tucson Gem & Mineral Show 1989
            Bangkok International Jewelry Fair
            Israel’s annual Showcase ‘90
            Bijorhca in Paris 1990
            Inhorgenta 90 in Munich
            Metal Media Juried Exhibition

To view the full section, download the PDF above. @topic:8


Publish Year: 1989 Title: Summer 1989 Gem News International Abstract: Diamonds
            Companies Vie for Angola Diamond Rights
            Australian Diamonds
            Diamonds from China
            Deep Space Diamonds
Colored Stones
            Visual Representation of Amethyst to Citrine Alteration
            Aquamarine Found in Wyoming
            Colored Stone Update from China
            Tunnels Used to Mine Emeralds at Muzo
            Hackmanite: A Remarkable Variety of Sodalite
            Australia's Opal Industry Crippled
            A Significant Find of Mexican Quartz
            Rose Quartz from Connecticut
            Blue Sapphires from Kenya
            Sapphire in Ontario
            An Interesting Zoned Australian Sapphire
            "Padparadscha" Sapphire
            Large Tourmaline Pocket Discovered at the Himalaya mine
Pearls
            Two Remarkable Natural Freshwater Pink Pearls from Texas
Synthetics and Simulants
            "Bull's-Eye" Optic Figure in Synthetic Berlinite
            An Unusual Ceramic Cameo
            A Clever Imitation Emerald Crystal
            Chatham Expands
            Union Carbide Growing Large Synthetic Sapphires
Announcements
            New Museum Opens in Brazil
            Gemmological Association of Israel is Formed
            Zambian Trade Association
            Jewelry Manufacturing Symposium
            KOSIMA ’89 in Greece
            FIT Symposium Announced
            Mineralogical Society of Southern California

To view the full section, download the PDF above. @topic:8


Publish Year: 1989 Title: Spring 1989 Gem News International Abstract: Tucson ‘89
            "Angelite"
            Garnet
            Man-Made "Inclusion" Specimens
            Mother-of-Pearl Gambling Chips
            Plastic Cameo Imitations
            Synthetic Quartz
            Tourmaline from Nigeria
Colored Stones
            A Beautiful New Form of Orthoclase
            New Emerald Deposit near Nova Era, Brazil
            Record-Size Spessartine Garnet
            Star Almandine Garnet from Idaho
            Wollastonite for Carving
Instrumentation
            New Developments in Spectroscopy
Synthetics and Simulants
            Recent Advances in Gem Diamond Synthesis
            Synthetic Diamonds by Detonation
            Synthetic Diamond vs. Cubic Zirconia
            Emerald Imitation from Quartz
            Heat-Treated Lepidolite?
            Imitations from Africa
            "Reconstructed" Azurite-Malachite
            Synthetic Amethyst Alert
Erratum
            Mr. Francisco Muller Bastos: 1988 G&G Challenge
In Memoriam
            Irwin Moed 1918-1988 @topic:8


Publish Year: 1988 Title: Winter 1988 Gem News International Abstract: Diamonds
            New Factory Set Up in China
            "Filled" Diamond Update
            India to Synthesize Diamonds
            Natural Diamond with Highly Unusual Inclusions
            Synthetic Diamond Thin-Film Update
Colored Stones
            Pyrope or Spinel: A Question of Identity
            Continued Tsavorite Mining
            Unusual Indian Quartz
            California Quartz
            "Aqua Aura" Quartz
            New Evidence of Treatment in Umba Sapphires
            Largest Faceted Gemstone
            Ruby Receives Highest Price at Auction
Synthetics
            Unusual Synthetic Beryls from the Soviet Union
            The Pool Synthetic Emerald
Announcements
            NAG to Register Qualified Jewelry Appraisers in Great Britain
            New Journal Gemological Digest No Longer Free
            Colored Gemstone Conference 1989
            ICA Promotes Gembureau
            INHORGENTA in Munich
            Trade Shows in Hong Kong

To view the full section, download the PDF above. @topic:8


Publish Year: 1988 Title: Fall 1988 Gem News International Abstract: Diamonds
            Angolan Guerilla Leaders Announce Huge Deposits
            Large Chinese Diamond Discovered
            Mwadui Mine (Tanzania) To Get New Source of Power
            New Alluvial Deposit in Namibia
            News from Murfreesboro
Colored Stones
            Change-of-Color Garnets
            Washington State Garnets
            New Mexico Moonstone
            Alaskan Nephrite Jade
            Opal from Oregon
            Sri Lanka
            Sapphirine from Greenland and Canada
            New Find of Zircons
Pearls
            New Form of Cultured Pearl
Synthetics
            A New Hard Material
            New Use for Synthetic Quartz
Announcements
            NRC Announces New Regulations
            Gemological Digest Available from Thailand
            1989 Tucson Gem & Mineral Show

To view the full section, download the PDF above. @topic:8


Publish Year: 1988 Title: A Gem-Quality Iridescent Orthoamphibole from Wyoming Abstract: A gem-quality iridescent orthoamphibole from Wyoming, similar to that described from Greenland, has been identified. This ornamental material occurs in a weathered gneiss-schist, near its contact with a peridotite mass. Most of the individual iridescent grains that constitute this rock are golden or dark brown, but a few are rose red or silvery gray. They consist principally of goethite and/or opaline silica, which probably was derived directly from the original ferroanthophyllite as a result of weathering. Economic amounts of this material are not available at this time, although it is likely that the deposit has the potential to produce significant quantities. @topic:2


Publish Year: 1988 Title: Summer 1988 Gem News International Abstract: Diamonds
            Diamond Dredging in a Big Way
            Diamond Brings Largest Per-Carat Price at Auction
Colored Stones
            More on Mexican Andradites
            Ruby from North Carolina
            Sri Lanka Update
            Clarification
Synthetics and Imitations
            Plastic Imitations of Lapis Lazuli and Malachite
            Clever Marketing
Announcements
            Colored Diamond Exhibit at Natural History Museum
            Journal of the History of Minerals
            Sixth Jewel and Diamond Fair in Antwerp
            Hong Kong Jewelry and Watch Fair Scheduled

To view the full section, download the PDF above. @topic:2


Publish Year: 1988 Title: Spring 1988 Gem News International Abstract: Tucson ‘88
            Beryl: Theme Mineral; Many Fine Specimens
            Carvings: Gemstone Carving in Full Swing
            Charoite: Rough from USSR
            Chrysoberyl: Small Alexandrites; Cat’s-Eye from Zimbabwe
            Corundum: “Hot Pink” Sapphires and Star Sapphires
            Garnet: Fine Large Tsavorites
            Scapolite: Translucent Pink Cat’s-Eyes
            Sillimanite: Gem-Quality from Sri Lanka
            Synthetics, Imitations, Treatments: Many Varieties
            Tourmaline: Faceted Bi-Color from Nigeria
            Zircon: Heat-Treated Blue from Kampuchea (Cambodia)
Colored Stones
            Inclusions Identified in New Brazilian Alexandrites
Synthetics
            Synthetic Diamond Thin Films
            Synthetic Red Chrysoberyl

To view the full section, download the PDF above. @topic:8


Publish Year: 1987 Title: Winter 1987 Gem News International Abstract: Diamonds
            Brazilian Diamond Find
            Remarkable Morphology
            A Follow-Up on the 64.83-ct D Diamond Sold at Christie's
Colored Stones
            The 21st International Gemmological Conference
            More on Brazilian Alexandrites
            Colorado Amethyst Find
            The "Lowell" Effect in Amethyst
            Trapiche Emerald Crystal
            "The Stellenbosch Gem Index"
            Double Phenomenon in Sapphire
            Tausonite: A New Mineral
            Transparent Gem Thaumasite
            Topaz from New Hampshire
Synthetics
            Check Your Filter
Announcements
            Diamond Jubilee at L.A. Natural History Museum
            World Gems Expo
            Commission on Gem Materials Meets in Brazil

To view the full section, download the PDF above. @topic:2


Publish Year: 1987 Title: Fall 1987 Gem News International Abstract: Diamonds
            "Filled" Diamonds
            De Beers Botswana
            Large Diamond Auctioned
Colored Stones
            Iridescent Andradite Garnets
            Plasticized Emeralds
            Kunzite from Sri Lanka
            "Rainbow Moonstones" are Labradorite
            Phenomenal Quartz from Brazil
            Included Quartz from Mexico
            New Ruby Locality in Afghanistan
            Heat-Treated Pink Sapphires
            New Locality for Topaz
            Treated Cat's-Eye Zircons
Announcements
            1988 Tucson Gem & Mineral Show
            AIGS Announces Quarterly Newsletter

To view the full section, download the PDF above. @topic:2


Publish Year: 1987 Title: Summer 1987 Gem News International Abstract: Diamonds
            Largest California Diamond Found
Colored Stones
            Brazilian Alexandrites
            Large Ekanite Found
            Chinese Marble Tiles
            “Conch Pearl” Substitute
Announcements
            Historical Jewelry from Two Collections
            Fashion Institute Symposium
            Proposed Gemstone Cut Classifcation
            Kenya Gemstone Dealers Association

To view the full section, download the PDF above. @topic:8


Publish Year: 1987 Title: Spring 1987 Gem News International Abstract: Diamonds
            Cubic Zirconia Coated by Synthetic Diamond?
Tucson 1987
            Amber: Dominican Available in Large Amounts
            Aquamarine: Zambia Source for New Find
            Chalcedony: Very Fine Iris Agates for Sale
            Chrysoberyl: Very Fine Alexandrite Available
            Diamond: Major White and Colored on Display
            Euclase: Irradiation Produces Pale Green Color
            Fluorite: Beads Sold as “Multi-Color Amethyst”
            Garnet: Green Grossular Now Scarce
            Kornerupine: Cat’s-eyes Sold as Quartz
            Moonstone: “Rainbow” Variety from India
            Opal: Very Fine Australian Black
            Peridot: Available from New Localities
            Quartz: Remarkable African Specimen on Display
            Ruby: New Find of Gem-Quality Reported
            Sapphire: Large Amounts of Intense Pink Seen
            Scapolite: Large Faceted Intense Reddish Purple
            Spodumene: Specimens Offered as “Sheen Phenakite”
            Turquoise: Substitute Imported from Germany
            Zircon: Virtually Every Color Available

To view the full section, download the PDF above. @topic:8


Publish Year: - Title: Spring 2012 Gem News International Abstract: Tucson 2012
Colored Stones and Organic Materials
            Aquamarine from Mavuco, Mozambique
            Azurite in Granitic Rock from Pakistan
            Cat's-Eye Emerald from the Belmont Mine, Brazil
            New Production of Purple Common Opal from Mexico
            Rare Stones Used in Jewelry: Smithsonite, Cobaltite, Pyrrhotite, Nickeline, Nuummite
            Rosalinda: A New Ornamental Scapolite Rock from Peru
            Vlasovite from Quebec
Synthetics and Simulants
            "Sterling Opal" Debuts
            Bicolored Tourmaline Imitation
Conference Reports
            U.S. Faceters Guild Seminars
Miscellaneous
            Meteorite Watches
GNI Regular Features
Diamonds
            Diamond Mining to Resume at Birim River, Ghana
Colored Stones and Organic Materials
            Iris Agate from Montana
            Black Cassiterite
            Diopside from Kenya
            Emerald Mining in Mingora, Pakistan
            Dark Yellowish Green Enstatite from Kenya
            New Gem Discoveries in Ethiopia
            Burmese Spessartine
Synthetics and Simulants
            Enameled Jewels in the Chinese Market
            Geikielite from Sri Lanka with Fake Star Effect
Treatments
            A Dyed Blue Opal with Play-of-Color
Conference Reports
            Mines to Market Conference
            Gem-A Conference 2011
Miscellaneous
            Gem News from Myanmar

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Publish Year: 1991 Title: Winter 1991 Gem News International Abstract: Diamonds
            Botswana Expands into Diamond Manufacturing
            Large Chinese Diamond
            Diamond Center Planned for China
            Data Suggest Strong, Changing U.S. Diamond Market
            Diamond Factory to Open in Dubai
            G.E. Synthesizes Large Carbon-13 Diamonds
            Guinea's Aredor Produces another Large Diamond
            Indonesian Production on Line
            "Nickel Thermometer" for Diamond Exploration
            New "Royal" Diamond Cuts
Colored Stones
            Hairy Insect in Amber
            Czechoslovakian Conference Yields Valuable Information
            Novel Chrysoberyl "Cross" Cat's-Eye
            Attractive Tanzanian Diopside
            Fine Emerald/Green Beryl from Nigeria
            New Production of Demantoid Garnets from Russia
            Tanzanian Yellow Grossular Garnets
            Large Tsavorite Garnet from Tanzania
            "Recycled" Ivory
            More on Peruvian Opal
            Antique Portrait Ring
            More Synthetics Sold as Natural Ruby in Vietnam
            Update from Sri Lanka
            Sunstone/Iolite Mixture
            Update on Tanzanite Mining
            Bicolored Tourmaline with Unusual Color Effect
Synthetics and Simulants
            New Laser Crystals with Gem Potential
            Novel Synthetic Star Sapphire
Enhancements
            More on Opticon as a Fracture Filler
            Filled Cavernous Emerald Crystal
            Filled Synthetic Emerald in Parcel from Swat
            Deceptive Color Coating of Sapphires in Sri Lanka
            More on Paraiba Tourmaline Simulants
Instrumentation and New Techniques
            Distinguishing Diffusion Treatment from Surface Coating
            New Setting Method Challenges Diamond Testers
            Jewelry Imaging/Teleconferencing System Introduced
            Tweezer Improvement
Announcements
            Southeast Asia Gemmological Conference

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Publish Year: 1986 Title: Winter 1986 Gem News International Abstract: Colored Stones
            Amblygonite Treatment
            Bicolored Beryl
            Electrically Treated Chalcedony
            Green Sphene
            Important New Amazonite Find
            Intergem Idar-Oberstein 1986
            Kenyan Rubies Exported to Thailand
            Metavariscite
            New Find of Elbaite Tourmaline
Announcements
            American Gem Society Conclave
            International Colored Gemstone Association

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Publish Year: 1986 Title: Fall 1986 Gem News International Abstract: Colored Stones
            Green-Fluorescing Emerald from Coscuez
            New Source of Gem Garnets from Idaho
            Blue Pectolite: Trade Name “Larimar”
            Fake Phosphorescent Quartz
            Color Change in Blue Zircon
Synthetics
            Gem-Quality Diamond Crystals
Announcements
            FIT Show in New York
            Iberjoya in Madrid
            Vicenzaoro 1 in Vicenza
            Jewelers International Showcase in Miami Beach
            BIJORHCA in Paris
            Tucson 1987
            INHORGENTA 87 in Munich
            International Fair in Sydney
            Platinum Jewellery Fair in Osaka

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