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terça-feira, 28 de março de 2017

EMERALD

EMERALD
Emerald crystal (35 x 40 mm), Fazenda dos Pombos, Anagé, Bahia. Collection of Julio Landmann. Photograph taken by Jeff Scovil. Emeralds are rarely perfectly pure, presenting inclusions called “gardens” that many people believe add to their charm. Their name is derived from the Greek smaragdos, which means “green stone”, in an allusion to their intense and characteristic color owing to the presence of chromium and/or vanadium.

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