Gem News International Gems & Gemology, Winter 2001, Volume 37, No. 4

Winter 2001 Gem News International

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
            A Visit to the Pearls Exhibit at AMNH
            Gems at the Bowers Museum
            GIA Museum Exhibits
            GIA’s New Graduate Retail Management Program
            Trip to Idar-Oberstein, Germany
            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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