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United States Bureau of Mines
المجال: 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 ...
A monoclinic mineral, CaBSiO<sub>4</sub>(OH) ; gadolinite group; in cracks and cavities in diabase or basalt; may be used as a minor gem. Also spelled datholite.
Industry:Mining
A monoclinic mineral, CaBSiO<sub>4</sub>(OH) ; gadolinite group; in cracks and cavities in diabase or basalt; may be used as a minor gem. Also spelled datholite.
Industry:Mining
A monoclinic mineral, CaCu<sub>4</sub>(SO<sub>4</sub>)<sub>2</sub>(OH)<sub>6</sub>.3H<sub>2</sub>O ; emerald-green to verdigris-green. Formerly called devillite; herrengrundite; lyellite; urvolgyite.
Industry:Mining
A monoclinic mineral, CaCuAlSi<sub>2</sub>O<sub>6</sub>(OH)<sub>3</sub>; forms blue crystals; secondary; at Ajo, Pima County, AZ.
Industry:Mining
A monoclinic mineral, CaHAsO<sub>4</sub>.2H<sub>2</sub>O ; white to gray; forms silky fibers; occurs in the oxidized parts of arsenical deposits.
Industry:Mining
A monoclinic mineral, CaHAsO<sub>4</sub>.2H<sub>2</sub>O ; white to gray; forms silky fibers; occurs in the oxidized parts of arsenical deposits.
Industry:Mining
A monoclinic mineral, CaHPO<sub>4</sub>.2H<sub>2</sub>O ; generally massive or in slender crystals.
Industry:Mining
A monoclinic mineral, CaHPO<sub>4</sub>.2H<sub>2</sub>O ; generally massive or in slender crystals.
Industry:Mining
A monoclinic mineral, CaLiAl<sub>2</sub>(AlBeSi<sub>2</sub>O<sub>10</sub>)(OH)<sub>2</sub>; mica group; perfect basal cleavage.
Industry:Mining
A monoclinic mineral, CaMg(AsO<sub>4</sub>)F ; isomorphous with isokite; violet-gray; at Laangban, Sweden, and Kajlidongri, Central India.
Industry:Mining