- 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, Na<sub>2</sub>Ca<sub>2</sub>(Al<sub>2</sub>Si<sub>3</sub>O<sub>10</sub>)<sub>3</sub>.8H<sub>2</sub>O ; zeolite group; pseudoorthorhombic; in cavities in basalt and andesite, geodes, and hydrothermal veins.
Industry:Mining
A monoclinic mineral, Na<sub>2</sub>CaFe<sub>3</sub>Al<sub>2</sub>(Si<sub>6</sub>Al<sub>2</sub>)O<sub>22</sub>(OH)<sub>2</sub>; amphibole group with magnesium replacing iron toward magnesiotaramite; black; at Wali-tarama, Mariupol, Ukraine.
Industry:Mining
A monoclinic mineral, Na<sub>2</sub>CO<sub>3</sub>.10H<sub>2</sub>O ; very soluble; forms earthy or granular crusts and efflorescences; in nonmarine evaporites and on lavas.
Industry:Mining
A monoclinic mineral, Na<sub>2</sub>Cu(SO<sub>4</sub>)<sub>2</sub>.2H<sub>2</sub>O ; azure; in Chilean copper deposits. Also spelled kroehnkite.
Industry:Mining
A monoclinic mineral, Na<sub>2</sub>Mg(SO<sub>4</sub>)<sub>2</sub>.4H<sub>2</sub>O . Also spelled bloedite, blodite. Formerly called astrakhanite.
Industry:Mining
A monoclinic mineral, Na<sub>2</sub>Mg(SO<sub>4</sub>)<sub>2</sub>.4H<sub>2</sub>O . Also spelled bloedite, blodite. Formerly called astrakhanite.
Industry:Mining
A monoclinic mineral, Na<sub>2</sub>Mg(SO<sub>4</sub>)<sub>2</sub>.4H<sub>2</sub>O . Also spelled bloedite, blodite. Formerly called astrakhanite.
Industry:Mining
A monoclinic mineral, Na<sub>2</sub>SO<sub>4</sub>.10H<sub>2</sub>O ; one perfect cleavage; tastes cool, then saline and bitter; in evaporite deposits, where it is mined as Glauber salt, and as an efflorescence.
Industry:Mining
A monoclinic mineral, Na<sub>2</sub>SO<sub>4</sub>.10H<sub>2</sub>O ; one perfect cleavage; tastes cool, then saline and bitter; in evaporite deposits, where it is mined as Glauber salt, and as an efflorescence.
Industry:Mining
A monoclinic mineral, Na<sub>3</sub>(Co<sub>3</sub>) ((HCO<sub>3</sub>)X2H<sub>2</sub>O ; soft; vitreous; colorless to white; alkaline tasting; in saline lake deposits and desert soils; a major source of sodium compounds from extensive deposits at Searles and Owens Lakes, CA, and in Wyoming, Hungary, Egypt, Africa, and Venezuela.
Industry:Mining
