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RM2814   Chalcocite with tennantite and calcite

Mantos Cobrizos mine, Paipote, Copiapó, Atacama, Chile

Very rich group of sharp chalcocite crystals, some isolated and other interpenetrated, tabular and with very clear twinned pseudohexagonal forms. Intense metallic luster, gray color. They stand out on a matrix of bright calcite and small tennantite crystals. The specimens of this locality are very rare. Novelty in Sainte-Marie-aux-Mines 2017. The Mantos Cobrizos mine is a type of "mantle" deposit. This is a small Cu deposit, located in the mining district of Los Cóndores, close to Paipote, Copiapó. So far the production has been made a small scale.

Size: 7.2 x 6.6 x 3.7 cm.