- المجال: 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, sodium potassium iron sulfate; possibly dimorphous with ungemachite.
Industry:Mining
A monoclinic mineral, SrB<sub>6</sub>O<sub>9</sub>(OH)<sub>2</sub>.3H<sub>2</sub>O ; subvitreous to pearly; colorless; forms compact fine-grained secondary nodules; also prismatic and tabular crystals; at Kramer and in the Furnace Creek area of Death Valley, CA.
Industry:Mining
A monoclinic mineral, TlAsS<sub>2</sub>; red; forms modified tabular or prismatic crystals with one perfect cleavage.
Industry:Mining
A monoclinic mineral, UMo<sub>5</sub>O<sub>12</sub>(OH)<sub>10</sub>; forms spherulitic masses of radiating purple fibers in incompletely oxidized uranium ores.
Industry:Mining
A monoclinic mineral, V<sub>2</sub>O<sub>2</sub>(OH)<sub>3</sub>; forms black crystals in sandstone, Wyoming.
Industry:Mining
A monoclinic mineral, VO(OH)<sub>2</sub>; forms minute pale-brown scales as an alteration of montroseite in sandstone on the Colorado Plateau.
Industry:Mining
A monoclinic mineral, VO(SO<sub>4</sub>).5H<sub>2</sub>O ; a blue efflorescence at Minasragra, near Cerro de Pasco, Peru.
Industry:Mining
A monoclinic mineral, VS<sub>4</sub>(?) ; synthetic VS<sub>4</sub>is soft, gray-black, fine-grained; impure material constitutes an important ore mineral in the vanadium deposit at Minasragra, Peru.
Industry:Mining
A monoclinic mineral, Y<sub>3</sub>Si<sub>3</sub>O<sub>10</sub>(OH)(?) ; red to pink; in pegmatites.
Industry:Mining
A monoclinic mineral, YPO<sub>4</sub>.2H<sub>2</sub>O . Formerly called weinschenkite.
Industry:Mining
