- 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 monoclinic mineral, KNa<sub>2</sub>Li(Fe,Mn)<sub>2</sub>Ti<sub>2</sub>Si<sub>8</sub>O<sub>24</sub>; forms red to black prismatic crystals; occurs in late stages of reduced, silica-deficient environments; e.g., alkaline igneous rocks and veins in serpentinite.
Industry:Mining
A monoclinic mineral, KNa<sub>2</sub>Li(MN,Fe)<sub>2</sub>Ti<sub>2</sub>Si<sub>8</sub>O<sub>24</sub>; forms a series with neptunite.
Industry:Mining
A monoclinic mineral, KNa<sub>4</sub>CaMn<sub>4</sub>Fe<sub>10</sub>Al(PO<sub>4</sub>)<sub>12</sub>(OH,F) ; dark green, forms a series with dickinsonite.
Industry:Mining
A monoclinic mineral, LiAl<sub>4</sub>(Si<sub>3</sub>Al)O<sub>10</sub>(OH)<sub>8</sub>; chlorite group.
Industry:Mining
A monoclinic mineral, LiAlSi<sub>4</sub>O<sub>10</sub>; perfect cleavage; vitreous; resembles spodumene; a source of lithium salts; in granite pegmatites.
Industry:Mining
A monoclinic mineral, Mg(C<sub>2</sub>O<sub>4</sub>).2H<sub>2</sub>O ; forms on serpentinite as a reaction between oxalic acid from the lichen Lecanora atra and magnesium-rich serpentine minerals; in northeast Scotland.
Industry:Mining
A monoclinic mineral, Mg(NO<sub>3</sub>)<sub>2</sub>.6H<sub>2</sub>O ; water soluble; white; an efflorescence in limestone caverns.
Industry:Mining
A monoclinic mineral, Mg(UO<sub>2</sub>)<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>.2H<sub>2</sub>O ; autunite group; forms pseudotetragonal square yellow plates at Katanga, Zaire.
Industry:Mining
A monoclinic mineral, Mg<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub>, with iron and silicon present; colorless, wax-white, or yellow; peripheral to olivine nodules in the Springwater pallasite meteorite discovered near Springwater, SK, Canada.
Industry:Mining
A monoclinic mineral, Mg<sub>4</sub>Si<sub>6</sub>O<sub>15</sub>(OH)<sub>2</sub>.6H<sub>2</sub>O ; soft; sp gr, 2 but fibrous dry masses float on water; occurs in veins in calcite and in alluvial deposits formed from weathering of serpentine masses, chiefly in Asia Minor, as meerschaum; may be used in making pipes, ornamental carvings.
Industry:Mining
