- Industrie: 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, Fe<sub>2+</sub>Fe<sub>3+ 5</sub>(PO<sub>4</sub>)<sub>4</sub>(OH)<sub>5</sub>.4H<sub>2</sub>O ; a secondary mineral in iron deposits; an alteration product of primary phosphates in pegmatites.
Industry:Mining
A monoclinic mineral, Fe<sub>2</sub>(AsO<sub>4</sub>)(SO<sub>4</sub>)(OH).5H<sub>2</sub>O ; forms minute lemon-yellow crystals in Argentina.
Industry:Mining
A monoclinic mineral, Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub>.6H<sub>2</sub>O .
Industry:Mining
A monoclinic mineral, Fe<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub>.7H<sub>2</sub>O ; forms rose to violet prisms; an alteration of pyrite.
Industry:Mining
A monoclinic mineral, Fe<sub>2</sub>Si<sub>2</sub>O<sub>5</sub>(OH)<sub>4</sub>.2H<sub>2</sub>O ; fine-grained to cryptocrystalline or fibrous; at Hibbing, MN; Blaine County, ID; and in Canada, Greenland, Finland, and Sweden.
Industry:Mining
A monoclinic mineral, Fe<sub>2</sub>Si<sub>2</sub>O<sub>6</sub>; pyroxene group; contains up to 15% Mg<sub>2</sub>Si<sub>2</sub>O<sub>6</sub>toward clinohypersthene; dimorphic with ferrosilite.
Industry:Mining
A monoclinic mineral, Fe<sub>4</sub>(VO<sub>4</sub>)<sub>4</sub>.5H<sub>2</sub>O ; golden brown; in uranium-vanadium deposits of the Colorado Plateau.
Industry:Mining
A monoclinic mineral, FeAl(PO<sub>4</sub>)(OH)<sub>2</sub>.H<sub>2</sub>O ; forms a series with eosphorite.
Industry:Mining
A monoclinic mineral, FeAl<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>(OH)<sub>2</sub>.8H<sub>2</sub>O ; dimorphous with paravauxite; forms acicular crystals or radiating fibrous aggregates.
Industry:Mining
A monoclinic mineral, FeSO<sub>4</sub>.6H<sub>2</sub>O ; hexahydrite group; transparent; forms at Vesuvius, Italy, as fine acicular crystals that are unstable under normal atmospheric conditions.
Industry:Mining
