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Summer 2003, Volume 39, Issue 2

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Lab Notes


CHRYSOBERYL, Non-phenomenal Vanadium-Bearing

Brown-Yellow DIAMONDS with an “Amber Center” and Pink Lamellae

GARNET, Color-Change Grossular-Andradite from Mali

GLASS

Guatemalan JADE with Lawsonite Inclusions

Chatoyant OPAL with Eye that “Opens and Closes”

Imitation PEARLS, Variously Colored, with Iridescent Appearance

SAPPHIRE/Synthetic Color-Change Sapphire Doublets

Unusual “Red” SPINEL

TANZANITE, Diffusion Treated?

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