Lab Notes Gems & Gemology, Spring 1990, Volume 26, No. 1

Spring 1990 G&G Lab Notes

Simulated Amethyst
Cat's-Eye Andalusite
Diamond Cutting Risks
Diamond with a Rare Inclusion
Emerald with Filled Fractures
Unusual Natural Opals
Gray Cultured Pearls
Rock Crystal Quartz with Lazulite Inclusions
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