Gem News International Gems & Gemology, Spring 1999, Volume 35, No. 1

Spring 1999 Gem News International

            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
            “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
            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
            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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