Winter 1992 Gem News International
Indicators of Additional Diamond Pipes in Australia
"Presidential" Diamond Cavity
An Update on Diamond Research
More Exploration in Tanzania
Zimbabwe Diamond Find
Colored Stones
Agate and Amethyst from Uruguay
Amber from the Dominican Republic and the Baltic Region
Unusual Aragonite
Color-Change Burbankite-Related Mineral from Mont St. Hilaire, Quebec
Dumortierite-in-Quartz Beads
Feldspar-and-Amphibole Gem from Egypt
Update on Golden Cultured Pearls
Sri Lanka: Current Mining in Elahera
Sri Lanka: Update on Gem Production
Large Taaffeite
New Joint Venture in Vietnam
Update on Vietnam Gems
Green Zoisite from Pakistan
Enhancements
Filled Diamonds Marketed Under New Name
Fracture Filling of Rough Diamonds Reported
More on Irradiated "Black" Diamonds
Interesting Treated Ornamental Sandstone
Synthetics and Simulants
Update on Crystal Growth
Attractive "Gem Construct"
Extremely Small Synthetic Melee
Synthetics Preset in Findings by "Automation"
Large Hydrothermal Synthetic Ruby
Assembled Imitation Watermelon Tourmaline
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