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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 ...
An isometric mineral, Fe<sub>2+</sub>V<sub>3+ 2</sub>O<sub>4</sub>; spinel group; a source of vanadium; formerly called vanado-magnetite.
Industry:Mining
An isometric mineral, Fe<sub>4</sub>Be<sub>3</sub>(SiO<sub>4</sub>)<sub>3</sub>S ; vitreoresinous; forms series with genthelvite and helvite.
Industry:Mining
An isometric mineral, FeIn<sub>2</sub>S<sub>4</sub>; linnaeite group; in minute iron-black grains in cassiterite from the Dzhalind deposit, Little Khingan ridge, the former U.S.S.R.
Industry:Mining
An isometric mineral, HBO<sub>2</sub>; in crystalline aggregates in rock salt in Kazakhstan(?).
Industry:Mining
An isometric mineral, Hg<sub>2</sub>N(Cl,SO<sub>4</sub>,MoO<sub>4</sub>,CO<sub>3</sub>).H<sub>2</sub>O ; yellow; secondary.
Industry:Mining
An isometric mineral, Hg<sub>6</sub>Cl<sub>3</sub>O(OH) or Hg<sub>4</sub>Cl<sub>2</sub>O ; forms brownish-yellow (darkening to black on exposure) dodecahedra with montroydite, calomel, and other mercury minerals at New Idria, CA, and Terlingua, TX.
Industry:Mining
An isometric mineral, HgS ; forms black tetrahedra; sp gr, 7.7; a source of mercury.
Industry:Mining
An isometric mineral, HgS ; forms black tetrahedra; sp gr, 7.7; a source of mercury.
Industry:Mining
An isometric mineral, HgS ; forms black tetrahedra; sp gr, 7.7; a source of mercury.
Industry:Mining
An isometric mineral, HgSe ; has sphalerite structure; dark gray to black.
Industry:Mining