宝石ニュース·インターナショナル Gems & Gemology, Volume 45, No. 1

Spring 2009 Gem News International


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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