Lab Notes Gems & Gemology, Winter 1983, Volume 19, Issue 4

Winter 1983 G&G Lab Notes

Heat-Treated Corundum
"C-Ox," Another Trade Name for Cubic Zirconia
A Colored-Diamond Comet
Dendritic Inclusions in Diamond
Jade Simulant
A New Synthetic Opal from Inamori
Cultured ¾ Blister Pearls
Eroded Pearl
Reddish Brown Quartz
Synthetic Ruby
Heat Treated Yellow Sapphires
A Rare Cat's-Eye Zircon
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