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rickardite
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rickardite

mineral
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sulfide mineral

rickardite, copper telluride mineral with the formula Cu7Te5, the purple-red masses of which resemble tarnished bornite. It was discovered at Vulcan, Colo., where it is accompanied by weissite, another copper telluride (Cu2−XTe). For chemical formulas and detailed physical properties, see sulfide mineral (table).

This article was most recently revised and updated by John P. Rafferty.