- 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 ...
A monoclinic mineral, Ba(UO<sub>2</sub>)<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>.8H<sub>2</sub>O ; meta-autunite group; yellow green; radioactive; a secondary mineral in quartz veins.
Industry:Mining
A monoclinic mineral, Ba<sub>2</sub>NaCe<sub>2</sub>Fe(Ti,Nb)<sub>2</sub>Si<sub>8</sub>O<sub>26</sub>(OH,F).H<sub>2</sub>O ; dimorphous with orthojoaquinite; forms minute honey-colored crystals; with benitoite and neptunite in San Benito County, CA.
Industry:Mining
A monoclinic mineral, Ba<sub>3</sub>NaSi<sub>2</sub>B<sub>7</sub>O<sub>16</sub>(OH)<sub>4</sub>; in colorless crystals associated with nahcolite and shortite in core from an oil boring at Ouray, CO.
Industry:Mining
A monoclinic mineral, BaAl<sub>2</sub>Si<sub>2</sub>(O,OH)<sub>8</sub>.H<sub>2</sub>O; pseudohexagonal; at the Benalt manganese mine, Wales. Named from Cymru, the Welsh name for Wales.
Industry:Mining
A monoclinic mineral, BaAl<sub>2</sub>Si<sub>2</sub>O<sub>8</sub>; feldspar group; pale yellow; dimorphous with celsian; at Candoglia, Italy.
Industry:Mining
A monoclinic mineral, BaAl<sub>2</sub>Si<sub>2</sub>O<sub>8</sub>; feldspar group; pale yellow; dimorphous with celsian; at Candoglia, Italy.
Industry:Mining
A monoclinic mineral, BaAl<sub>3</sub>(PO<sub>4</sub>)(PO<sub>3</sub>OH)(OH)<sub>6</sub>; crandallite group; pseudotrigonal; forms spheroids in fractured novaculite, Garland County, AR; and as rolled pebbles (favas) in the diamantiferous sands of Brazil and Guyana.
Industry:Mining
A monoclinic mineral, BaMn<sub>8</sub>O<sub>16</sub>; cryptomelane group; pseudotetragonal; massive, botryoidal, stalactitic, or prismatic with deeply striated faces; commonly associated with pyrolusite. Compare: romanechite
Industry:Mining
A monoclinic mineral, BaNa<sub>4</sub>Ti<sub>2</sub>B<sub>2</sub>Si<sub>10</sub>O<sub>30</sub>; in alkali pegmatites and the Green River Formation of Utah and Wyoming.
Industry:Mining
A monoclinic mineral, Be<sub>2</sub>(AsO<sub>4</sub>)(OH).4H<sub>2</sub>O .
Industry:Mining
