Lab NotesGems & Gemology, Winter 2002, Volume 38, No. 4

Winter 2002 G&G; Lab Notes

“Piranha” Agate Surface-Treated Amber Unusual Ceramic Gem Simulant More Bulk Diffusion—Rubies and Orange Sapphire Diamond with Internal Inscriptions Two Large Glass Imitation Jade Carvings Jadeite Bleached, Impregnated, and Dyed, with Unusual Inclusions Cultured Pearls with Treated Yellow Color To view the full section, download the PDF above.

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