Lab Notes Gems & Gemology, Spring 1993, Volume 29, No. 1

Spring 1993 G&G Lab Notes

Synthetic Alexandrite with Needle-Like Inclusions
"Coated" Beryl
Irradiated Beryl of a Rare Color
Blue Diamond with Unusual Inclusions
Laser-Drilled Diamond for Mounting
Laser-Assisted Filling in Diamond
Radioactive Diamond
Cabochon Cut Synthetic Emerald
Imitation Lapis Lazuli
Large Faceted Lazulite
Cat's-Eye Orthoclase
Abalone Pearls from North America
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