Lab Notes Gems & Gemology, Fall 1984, Volume 20, Issue 3

Fall 1984 G&G Lab Notes

Diamond with Phantom Growth Plane
Diamond Simulant, Inclusions in Cubic Zirconia
Emerald Substitute: Dyed Beryl
Lechleitner Synthetic Overgrowth in Emerald
Enstatite, Near Colorless
Abalone Pearl
Accidental, or "Keshi," Pearls?
Cultured Pearl Mystery
Imitation "Rice Grain" Biwa Cultured Pearls
More Imitation Pearls
Natural Seed Pearls and Glass Imitations
Turquoise "Hidden" Treatment
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