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Chalcopyrite and Quartz

Chalcopyrite and Quartz with micro crystals of Dickite and Sphalerite. Chalcopyrite is copper iron sulfide. Irarado Mine. Telluride District. San Miguel Co., Colo. (Collection of the Colorado School of Mines Geology Museum. Golden, Colo.)

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Uploaded on January 16, 2015
Taken on December 2, 2014