Lab Notes Gems & Gemology, Summer 1985, Volume 21, No. 2

Summer 1985 G&G Lab Notes


Amber, with Unusual Inclusions
Amethyst, with Confusing Inclusions
Diamond Damaged in Cutting
Fancy Blue Diamond
Fluorite Carving, Damaged by Sulfuric Acid
Hexagonite, Cat's-Eye
Unusual Gilson Synthetic Opal
Yellow-Green Opal
Freshwater Cultured Pearls from China
Imitation Pearls
Quartz, Very Dark Reddish Gray Cat's-Eye
Star Sapphire, Diffusion-treated
Scapolite, Dark Cat's-Eye
Topaz Imitation
Zircon, Cat's-Eye

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