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United States Bureau of Mines
Industry: 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 hexagonal mineral, KAlSiO<sub>4</sub>; polymorphous with kalsilite, panunzite, and trikalsilite.
Industry:Mining
A hexagonal mineral, Mg<sub>2</sub>Al<sub>4</sub>Si<sub>5</sub>O<sub>18</sub>; the high-temperature polymorph of cordierite; in sediments fused by a burning coal seam in India. Named for the locality.
Industry:Mining
A hexagonal mineral, Mg<sub>3</sub>(BO<sub>3</sub>)(F,OH)<sub>3</sub>; colorless; occurs as fibrous masses of small prisms in skarns and veinlets in massive franklinite ore at Sterling Hill, NJ; also at Norberg, Sweden; Nocera, Italy; and Broadford, Scotland. Formerly called nocerite.
Industry:Mining
A hexagonal mineral, Mg<sub>6</sub>Cr<sub>2</sub>(CO<sub>3</sub>)(OH)<sub>16</sub>.4H<sub>2</sub>O ; manasseite group; rose-pink to violet; dimorphous with stichtite.
Industry:Mining
A hexagonal mineral, Na<sub>2</sub>ZrSi<sub>3</sub>O<sub>9</sub>.2H<sub>2</sub>O ; yellow to yellow-brown; forms thin, tabular hexagonal prisms.
Industry:Mining
A hexagonal mineral, NaBe<sub>4</sub>SbO<sub>7</sub>; at Laangban, Sweden.
Industry:Mining
A hexagonal mineral, NaCaY(F,Cl)<sub>6</sub>; in albitized granites and associated quartzmicrocline veins in Kazakhstan.
Industry:Mining
A hexagonal mineral, Ni<sub>5-x</sub>As<sub>2</sub>; rose-bronze; at the Tiebaghe massif, New Caledonia.
Industry:Mining
A hexagonal mineral, Pb<sub>3</sub>Ca<sub>2</sub>(AsO<sub>4</sub>)<sub>3</sub>Cl ; apatite group; yellowish-white; at Franklin, NJ, and various localities in Sweden. Compare: mimetite.
Industry:Mining
A hexagonal mineral, Pb<sub>5</sub>(AsO<sub>3</sub>)<sub>3</sub>Cl ; occurs as prisms forming crusts lining crevices in granular hematite at Laangban, Sweden.
Industry:Mining
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