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United States Bureau of Mines
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 orthorhombic mineral, CaAlB<sub>3</sub>O<sub>7</sub>; forms transparent grains and lamellar masses; fluoresces an intense blue owing to traces of rare-earth elements; in nepheline dikes, cutting sandstone in the Johachido District, Kenkyohokuco Prefecture, Korea.
Industry:Mining
An orthorhombic mineral, CaB<sub>2</sub>O<sub>4</sub>; in white radial aggregates in drill cores from limestone skarn in the Urals, Russia.
Industry:Mining
An orthorhombic mineral, CaB<sub>2</sub>Si<sub>2</sub>O<sub>8</sub>; resembles topaz in habit, appearance, and properties; in marbles, low-temperature veins, and placers.
Industry:Mining
An orthorhombic mineral, CaCu(AsO<sub>4</sub>)(OH) ; adelite group; forms series with austinite, with calciovolborthite, and with cobaltoaustinite; formerly called higginsite.
Industry:Mining
An orthorhombic mineral, CaCu(VO<sub>4</sub>)(OH) ; adelite group; moderately radioactive; in the Colorado Plateau in sandstone associated with carnotite and tyuyamunite, or in the oxidized zone of deposits containing vanadium minerals.
Industry:Mining
An orthorhombic mineral, CaMn<sub>2</sub>O<sub>4</sub>; opaque black with dark red internal reflection; in Morocco.
Industry:Mining
An orthorhombic mineral, CaMnSiO<sub>4</sub>; occurs in prismatic crystals associated with nasonite, willemite, garnet, axinite, and barite at Franklin, NJ. Compare: monticellite
Industry:Mining
An orthorhombic mineral, CaSnSi<sub>3</sub>O<sub>9</sub>.2H<sub>2</sub>O ; forms acute pyramids; at Roscommon Cliff, St. Just, Cornwall, U.K.
Industry:Mining
An orthorhombic mineral, CaSO<sub>4</sub>; massive; primarily in evaporite deposits, hot sulfate volcanic waters, and veins; hydrates to gypsum. Formerly called cube spar.
Industry:Mining
An orthorhombic mineral, CaZn(AsO<sub>4</sub>)(OH); adelite group; forms a series with conichalcite.
Industry:Mining
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