- 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 ...
A tetragonal mineral, MnO<sub>2</sub>; rutile group; trimorphous with akhtenskite and ramsdellite; soft; metallic; steel gray; massive or reniform; a source of manganese. Compare: psilomelane gray manganese ore.
Industry:Mining
A tetragonal mineral, Na<sub>2</sub>(UO<sub>2</sub>)(PO<sub>4</sub>)<sub>2</sub>.8H<sub>2</sub>O ; meta-autunite group; radioactive; yellow.
Industry:Mining
A tetragonal mineral, Na<sub>4</sub>AlBeSi<sub>4</sub>O<sub>12</sub>Cl ; in the Ilimaussaq massif, southwest Greenland. Formerly called beryllosodalite.
Industry:Mining
A tetragonal mineral, Na<sub>5</sub>Al<sub>3</sub>F<sub>14</sub>; massive; granular; occurs with cryolite.
Industry:Mining
A tetragonal mineral, NaAl<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>(OH)<sub>4</sub>.2H<sub>2</sub>O ; bluish-green; forms oolitic or crystalline encrusting layers; in Cedar Valley and near Fairfield, UT.
Industry:Mining
A tetragonal mineral, NaFe<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>(OH)<sub>4</sub>.2H<sub>2</sub>O ; in pegmatite at Cyrilov, Moravia, Czech Republic.
Industry:Mining
A tetragonal mineral, Ni<sub>11</sub>As<sub>8</sub>; forms tabular crystals; occurs in nickel-cobalt-nativesilver ore deposits.
Industry:Mining
A tetragonal mineral, Ni<sub>11</sub>As<sub>8</sub>; forms tabular crystals; occurs in nickel-cobalt-nativesilver ore deposits.
Industry:Mining
A tetragonal mineral, Ni<sub>11</sub>As<sub>8</sub>; forms tabular crystals; occurs in nickel-cobalt-nativesilver ore deposits.
Industry:Mining
A tetragonal mineral, NiSO<sub>4</sub>.6H<sub>2</sub>O ; dimorphous with nickelhexahydrite; blue green; associated with morenosite, the septehydrate.
Industry:Mining