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Chalcopyrite and Quartz

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

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Uploaded on July 17, 2017
Taken on May 14, 2017