Lab Notes Gems & Gemology, Winter 1988, Volume 24, No. 4

Winter 1988 G&G Lab Notes

Imitation Dyed Black Chalcedony Beads
Imitation Crystal Diamond
Diamond with Radiation Stains
Mysteriously Damaged Diamond
Dyed Grossularite Garnet
Walrus Ivory
Irradiated Cultured Pearls
Pear-Shaped Saltwater Pearl
Large Flux-Grown Synthetic Ruby
Synthetic Spinel Represented as Topaz
Synthetics and "Modern" Gems in Period Jewelry
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