- 行业: Mining
- Number of terms: 33118
- Number of blossaries: 0
- 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 isometric mineral, Au<sub>2</sub>Bi ; pink to silver-white; intermetallic compound.
Industry:Mining
An isometric mineral, Bi<sub>12</sub>SiO<sub>20</sub>; forms greenish, earthy or waxy masses; at Durango, Mexico.
Industry:Mining
An isometric mineral, Bi<sub>4</sub>(SiO<sub>4</sub>)<sub>3</sub>; vitreous, transparent to translucent tetrahedral crystals associated with native bismuth near Schneeberg, Saxony, Germany.
Industry:Mining
An isometric mineral, Bi<sub>4</sub>(SiO<sub>4</sub>)<sub>3</sub>; vitreous, transparent to translucent tetrahedral crystals associated with native bismuth near Schneeberg, Saxony, Germany.
Industry:Mining
An isometric mineral, Ca<sub>10</sub>Al<sub>24</sub>(SiO<sub>4</sub>)<sub>6</sub>(PO<sub>4</sub>)<sub>7</sub>O<sub>22</sub>F<sub>3</sub>.72H<sub>2</sub>O(?) ; white; forms wartlike masses; at Vise, Belgium.
Industry:Mining
An isometric mineral, Ca<sub>12</sub>Al<sub>14</sub>O<sub>33</sub>; occurs in metamorphosed marly limestone; an important constituent of portland cement clinker.
Industry:Mining
An isometric mineral, Ca<sub>3</sub>(Ce,Y)Al<sub>2</sub>(SO<sub>4</sub>)F<sub>13</sub>.10H<sub>2</sub>O ; a rare-earth mineral in the Kara- Oba molybdenite deposit, central Kazakhstan, and the Clara Mine, Oberwolfach, Germany.
Industry:Mining
An isometric mineral, Ca<sub>3</sub>(V,Al,Fe)<sub>2</sub>(SiO<sub>4</sub>)<sub>3</sub>; garnet group; forms dark-green dodecahedra and minute grains embedded in vanadium-rich clay; at Laguna uranium mining district, NM.
Industry:Mining
