Gem News InternationalGems & Gemology, Winter 2007, Vol. 43, No. 4

Winter 2007 Gem News International

Diamonds Colored Diamonds Break $1 Million per Carat with Record Auction Prices Namibian Diamond Mining by Namdeb Colored Stones and Organic Materials Double Jeopardy in Amber Inclusions in Andradite from Namibia Andradite from Baluchistan, Pakistan Two Axinite Species from Tanzania Baddeleyite from Mogok, Myanmar Chrysocolla Chalcedony from Iran/Armenia Area Yellow-Green Clinohumite and Yellow Chondrodite from Tanzania Transparent Dumortierite and Sapphirine from Tanzania Brazilian Blue Opal, with Cristobalite and Quartz Otolith Pendant Goethite and Hematite Inclusions in Quartz from Mina Da Batalha, Brazil Sinhalite from Myanmar Field Study of Cu-bearing Tourmaline Mines in Mozambique New Cu-bearing Tourmaline from Nigeria Synthetics and Simulants New Tairus Synthetic Beryl Simulating “Paraíba” Tourmaline An Unusual YAG with a “Reverse” Color Change Conference Reports Geological Society of America 2007 Goldschmidt 2007 The Madison Dialogue Ethical Jewelry Summit Announcements Visit Gems & Gemology in Tucson Exhibits Exhibits at the GIA Museum Gems! Colors of Light and Stone at the Bowers Museum The Aurora Collection at “The Vault” at the London NHM To view the full section, download the PDF above.

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