Gem News International Gems & Gemology, Summer 2004, Volume 40, No. 2

Summer 2004 Gem News International

Colored Stones and Organic Materials
            Amethyst from California
            Green Petrified Wood from Arizona
            A Unique Quartz Sculpture from Peru
            Scapolite from Mozambique
            Update on Tourmaline and Other Minerals from Warner Springs, California
Instruments and Techniques
            Recent U.S. Patents for Diamond Fingerprinting Methods
Synthetics and Simulants
            Colored Cubic Zirconia Buddha Carvings
            “Shell Pearls” with Tridacna Clam Shell Beads
            Fake Tanzanite Mineral Specimens
Conference Reports
            GAC-MAC 2004
            Pearls at the Royal Ontario Museum
            Carnegie Gem & Mineral Show
            5th European Conference on Mineralogy and Spectroscopy
            Gems of Pacific Continental Margins
            Diamond 2004
            ICAM 2004 in Brazil
            Hong Kong Jewellery & Watch Fair
            Rapaport International Diamond Conference 2004
            CGA Gemmology Conference 2004
            Pegmatites at GSA
            Antwerp Diamond Conference
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