Gem News International Gems & Gemology, Volume 48, No. 1

Spring 2012 Gem News International

Tucson 2012
Colored Stones and Organic Materials
            Aquamarine from Mavuco, Mozambique
            Azurite in Granitic Rock from Pakistan
            Cat's-Eye Emerald from the Belmont Mine, Brazil
            New Production of Purple Common Opal from Mexico
            Rare Stones Used in Jewelry: Smithsonite, Cobaltite, Pyrrhotite, Nickeline, Nuummite
            Rosalinda: A New Ornamental Scapolite Rock from Peru
            Vlasovite from Quebec
Synthetics and Simulants
            "Sterling Opal" Debuts
            Bicolored Tourmaline Imitation
Conference Reports
            U.S. Faceters Guild Seminars
            Meteorite Watches
GNI Regular Features
            Diamond Mining to Resume at Birim River, Ghana
Colored Stones and Organic Materials
            Iris Agate from Montana
            Black Cassiterite
            Diopside from Kenya
            Emerald Mining in Mingora, Pakistan
            Dark Yellowish Green Enstatite from Kenya
            New Gem Discoveries in Ethiopia
            Burmese Spessartine
Synthetics and Simulants
            Enameled Jewels in the Chinese Market
            Geikielite from Sri Lanka with Fake Star Effect
            A Dyed Blue Opal with Play-of-Color
Conference Reports
            Mines to Market Conference
            Gem-A Conference 2011
            Gem News from Myanmar
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