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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 monoclinic mineral, CuO ; occurs in gray scales, black powder, or earthy masses; sp gr, 6.4; in oxidized zones of copper deposits; a source of copper.
Industry:Mining
A monoclinic mineral, CuSO<sub>4</sub>.3H<sub>2</sub>O ; blue; partly dehydrated from chalcanthite.
Industry:Mining
A monoclinic mineral, CuSO<sub>4</sub>.7H<sub>2</sub>O ; melanterite group; of a lighter blue than chalcanthite, from which it differs in its larger proportion of water.
Industry:Mining
A monoclinic mineral, dimethyl-isopropyl-perhydropenanthrene, C<sub>19</sub>H<sub>34</sub>; translucent white; in fossil wood or conifers.
Industry:Mining
A monoclinic mineral, Fe(SO<sub>4</sub>)(OH).5H<sub>2</sub>O ; forms fine fibrous crusts or masses associated with melanterite, copiapite, jarosite, and other secondary sulfates.
Industry:Mining
A monoclinic mineral, Fe<sub>2+ 3</sub>(AsO<sub>4</sub>)<sub>2</sub>.8H<sub>2</sub>O ; vivianite group; dimorphous with symplesite and isomorphous with koettigite; bluish green.
Industry:Mining
A monoclinic mineral, Fe<sub>2+</sub>Fe<sub>3+ 2</sub>(SO<sub>4</sub>)<sub>4</sub>.22H<sub>2</sub>O ; hallotrichite group; white to yellowish; in radially fibrous masses.
Industry:Mining
A monoclinic mineral, Fe<sub>2+</sub>Fe<sub>3+ 4</sub>(PO<sub>4</sub>)<sub>3</sub>(OH)<sub>5</sub>.2H<sub>2</sub>O ; forms green botryoidal crusts commonly associated with limonite in gossans.
Industry:Mining
A monoclinic mineral, Fe<sub>2+</sub>Fe<sub>3+ 4</sub>(PO<sub>4</sub>)<sub>3</sub>(OH)<sub>5</sub>.2H<sub>2</sub>O ; forms green botryoidal crusts commonly associated with limonite in gossans.
Industry:Mining
A monoclinic mineral, Fe<sub>2+</sub>Fe<sub>3+ 4</sub>(PO<sub>4</sub>)<sub>3</sub>(OH)<sub>5</sub>.2H<sub>2</sub>O ; forms green botryoidal crusts commonly associated with limonite in gossans.
Industry:Mining
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