Lab NotesGems & Gemology, Winter 1982, Vol. 18, No. 4

Winter 1982 G&G; Lab Notes

"Chameleon" Diamond Crusader Diamond Diamond Oddities Unusual Absorption Spectrum in Diamond Emerald Parisite Plugged Natural Blister Pearls Star Quartz Heat Treated Sapphire Spinel and Sapphire, Colored by Cobalt Star Spinel Unclassified Oddities To view the full section, download the PDF above.

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