Lab Notes

Summer 1987 G&G; Lab Notes

Needle-Like Inclusions in Epidote A New Opal Assemblage A Cultured Pearl Puzzle A "Fossilized Pearl" from Utah Cat's-Eye Peridot Dyed Yellow Quartzite Synthetic Blue Sapphire Synthetic Yellow Sapphire Unusual Inclusions in Heat-Treated Blue Sapphire Dyed Yellow and Reddish Orange Serpentine Sapphirine, a Rare Gemstone Bicolor Topaz To view the full section, download the PDF above.

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