Summer 1992 Gem News International
Claim-Staking Rush in Canada
International Diamond Technical Symposium in Israel
Prospecting Reveals Kimberlite Pipes in Ukraine
Small Industrials in Uzbekistan
DeBeers and the Republic of Sakha Sign Sales Agreement
Visit to a Small Diamond-Mining Operation in South Africa
DeBeers Signs Prospecting Agreement with Tanzania
Zaire Produced Fewer Diamonds
Zaire Tightens Trade Regulations
Colored Stones
Exotic "Jewel" Beetles
Cat's-Eye Golden Beryl
Garnets from Egypt
Large Jadeite Boulder
Gemstones from Laos
Attractive Meteorite Jewelry
Black Mabe "Pearls" and Simulants (from Nautilus Shell)
Rare Gemstones from Quebec
Tajikistan to Develop Gem Resources
Enhancements
Acrylic Coating of Gem Materials
Dyed Massive Beryl and Quartz Resembling Ornamental Gems
Beryl Beads with Multiple Color Enhancements
Treatable "Concrete" Opal
Silver-Nitrate-Treated Matrix Opal
Modern-Day Turquoise Oiling
Synthetics and Simulants
Assembled Imitation Emerald Crystal
Update on Nontransparent CZ
Bicolored CZ
Blue Spinel from Vietnam as Sapphire Imitator
Glass Imitation Tourmaline Crystal
More Synthetics Sold as Natural Rubies from Vietnam
Experimental Synthetic Sodalite from China
Instrumentation
Low-Cost Quartz Wedge Simulator
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