- 行业: Mining
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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 triclinic mineral, Sb<sub>2</sub>S<sub>2</sub>O ; pseudomonoclinic; occurs as soft tufts of cherry-red capillary crystals with one perfect cleavage; an alteration product of stibnite.
Industry:Mining
A triclinic mineral, Sb<sub>2</sub>S<sub>2</sub>O ; pseudomonoclinic; occurs as soft tufts of cherry-red capillary crystals with one perfect cleavage; an alteration product of stibnite.
Industry:Mining
A triclinic mineral, Sb<sub>2</sub>S<sub>2</sub>O ; pseudomonoclinic; occurs as soft tufts of cherry-red capillary crystals with one perfect cleavage; an alteration product of stibnite.
Industry:Mining
A triclinic mineral, Sb<sub>2</sub>S<sub>2</sub>O ; pseudomonoclinic; occurs as soft tufts of cherry-red capillary crystals with one perfect cleavage; an alteration product of stibnite.
Industry:Mining
A triclinic mineral, Sb<sub>2</sub>S<sub>2</sub>O ; pseudomonoclinic; occurs as soft tufts of cherry-red capillary crystals with one perfect cleavage; an alteration product of stibnite.
Industry:Mining
A triclinic mineral, WAlO<sub>3</sub>(OH)<sub>3</sub>; in tungstic ochers in central Africa and Tasmania.
Industry:Mining
A triclinic mineral, Zn<sub>2</sub>(AsO<sub>4</sub>)(OH) ; rare; dimorphous with adamite and isomorphous with tarbuttite; transparent; vitreous; pale yellow; forms sheaflike aggregates and striated equant crystals; at the Ojuela Mine, Durango, Mexico.
Industry:Mining
A triclinic mineral, Zn<sub>2</sub>(PO<sub>4</sub>)(OH) ; forms a series with paradamite; at Broken Hill, Kabwe, Zambia.
Industry:Mining
A triclinic mineral, Zn<sub>2</sub>(PO<sub>4</sub>)(OH) ; forms a series with paradamite; at Broken Hill, Kabwe, Zambia.
Industry:Mining
A trigonal and hexagonal mineral, (Mg,Fe)<sub>2</sub>(Al,Ti)<sub>5</sub>O<sub>10</sub>; metallic black with imperfect cleavage and conchoidal fracture; with magnetite, ilmenite, corundum, or ferroan spinel in iron ore at Redstand, Norway, and in emery at Whittles, VA. Also spelled hoegbomite.
Industry:Mining