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Big text Copper and Sulfur

Bold text Copper and sulfur create the mineral chalcanthite (CoS) it is a radiant, blue crystal that forms mostly on blue stones in the shape of rhombus. Sometimes the rock that chalcanthite grows on is malachite, a blue dotted, gray imporant ore of copper. see this mineral at http://www.bestcrystals.com! This mineral sometimes forms as stalactites and stalagmites.