国际宝石新闻 Gems & Gemology, Volume 46, No. 2

Summer 2010 Gem News International


Diamonds
            Unusual Facet Arrangement Produces Scalloped Appearance in Diamond
Colored Stones and Organic Materials
            Chrysocolla Chalcedony from Acari, Peru
            Recent Finds Of Kunzite in Pala, California
            Natural Pearls of the Pectinidae Family: Review and Origin of Color
            More on Ruby from Cabo Delgado, Mozambique
            Ruby, Sapphire, and Spinel Mining In Vietnam: An Update
            Sphene from Northern Pakistan
            Spinel from Bawma, Myanmar
            Tsavorite and Other Green Garnets Reportedly from Afghanistan
Synthetics and Simulants
            An Unusual Lab-Grown Garnet: Calcium Niobium Gallium Garnet
            Glass Imitations of Emerald with Straight Zones
            “Nanogems”—A New Glass-Ceramic Material
            Serpentine Doublets, Sold as Pietersite, from Arizona
Treatments
            A Composite Coral Bangle
            Lead Glass-Filled Ruby in Antique Jewelry
            Tanzanite and Other Gems Set with Colored Adhesive
Conference Reports
            1st Italian Conference on Scientific Gemology
            Sinkankas Symposium 2010—Gem Feldspars
Miscellaneous
            Gem News from Myanmar
Announcements
            Updated CIBJO Blue Books Released
In Memoriam
            Roy E. “Chip” Clark (1947-2010), scientific and studio photographer
 
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