Lab Notes Gems & Gemology, Spring 1988, Volume 24, No. 1

Spring 1988 G&G Lab Notes

Synthetic Alexandrite
Artistically Stained Chalcedony
Cyclotron-Treated Diamond
Damaged Diamond
Banded Lapis Lazuli
Early "Japanese" Pearls
Natural Pearl and Diamond Tiara
Color Zoned Sapphire
Sapphire with Needles
Tourmaline from Nepal
Imitation Turquoise with "Veins" and Pyrite
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