Lab Notes Gems & Gemology, Fall 1987, Volume 23, No. 3

Fall 1987 G&G Lab Notes

Brazilian Alexandrite
Highly Radioactive Green Diamond
Treated Yellow Diamond with Cape Lines
Jade Earrings
Black Cultured Pearls
An Unusual Use for a Natural Pearl
Scenic Quartz
Heat-Treated Yellow Sapphire
Cat's-Eye Sillimanite (Fibrolite)
A Brownish Gray Taaffeite
A Rare Green Cat's-Eye Chrome Tourmaline

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