Lab Notes Gems & Gemology, Winter 2003, Volume 39, No. 4

Winter 2003 G&G Lab Notes

Chrysocolla “Owl” Agate
Interesting Red Coral
Coated Diamonds
Natural Emerald with Abundant Nail-Head Spicules
Emerald With Strong Dichroism
High-R.I. Glass Imitation of Tanzanite
Large Clam “Pearl”
Blue Sapphires with Unusual Color Zoning
Spinel with Filled Cavities
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