National University] at 06:43 31 December 2014 mine in Colorado, and they found virtually the entire...others, chalcopyrite, galena, sphalerite, pyrite, acanthite, bornite, calcite, dolomite, siderite, barite...tetrahedrite and pyrite specimen from the Anchor mine, Park City, Utah. The specimen was in the stock...examples at the present time are from the Sweet Home mine, near Alma, Park County, Colorado, where it occurs...with enargite and fluorite come from the Longfellow mine, Red Mountain district, San Juan County (D. Bunk |