- 行业: Mining
- Number of terms: 33118
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- Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
An orthorhombic mineral, Cu<sub>3</sub>BiS<sub>3</sub>; gray to tin-white; at Wittichen, Baden, Germany.
Industry:Mining
An orthorhombic mineral, Cu<sub>3</sub>BiS<sub>3</sub>; gray to tin-white; at Wittichen, Baden, Germany.
Industry:Mining
An orthorhombic mineral, Cu<sub>5</sub>(SiO<sub>3</sub>)<sub>4</sub>(OH)<sub>2</sub>; blue.
Industry:Mining
An orthorhombic mineral, Cu<sub>7</sub>S<sub>4</sub>; alters to a digenitelike crystal solution upon grinding.
Industry:Mining
An orthorhombic mineral, Cu<sub>7</sub>Te<sub>5</sub>; pseudotetragonal; deep purple; at Vulcan and Bonanza, CO; Warren, AZ; and Salvador, Brazil.
Industry:Mining
An orthorhombic mineral, CuAgSe ; soft; sp gr, 7.6 to 7.8; in most deposits of selenium minerals, associated with unangite, klockmannite, and clausthalite, e.g., Smaland, Sweden; Copiapo, Chile; and the Harz Mountains, Germany. Also spelled eukairite.
Industry:Mining
An orthorhombic mineral, CuBiS<sub>2</sub>; metallic, grayish to tin-white, acicular to prismatic crystals with longitudinal striations; sp gr, 6.3 to 6.5; associated with chalcopyrite and other sulfides in silver veins or bismuth-rich parts of contact metamorphic deposits; may be confused with bismuthinite.
Industry:Mining
An orthorhombic mineral, CuCl<sub>2</sub>.2H<sub>2</sub>O ; forms a sublimate of soft bluish-green woollike aggregates on the sides of fumaroles.
Industry:Mining
An orthorhombic mineral, CuCl<sub>2</sub>.2H<sub>2</sub>O ; forms a sublimate of soft bluish-green woollike aggregates on the sides of fumaroles.
Industry:Mining