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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 ...
Ga<sub>2</sub>O<sub>3</sub>; melting point, 1,795+ or -15 degrees C.
Industry:Mining
Gage number defining the diameter of wire. Abbrev.: SWG.
Industry:Mining
Galena containing Pb 206, the lead isotope produced by radioactive decay of U 238.
Industry:Mining
Galvanized steel rope.
Industry:Mining
Gangue; principally oxides, silicates, or carbonates of iron.
Industry:Mining
Gas trapped beneath mica cleavage surfaces in flattened pockets, tiny bubbles, or groups of closely spaced bubbles.
Industry:Mining
Gaseous or dissolved ammonia.
Industry:Mining
Gases produced by mine explosions or mine fires.
Industry:Mining
Gate road that is driven simultaneously with the longwall coal face, when the advancing longwall technique is used, but which is maintained some 10 to 20 yd (9 to 18 m) or more in advance of the face. The area immediately ahead of the coal face is therefore preexplored, and steps can be taken to cope with minor disturbances and thus prevent a serious loss of output.
Industry:Mining
Ge<sub>3</sub>N<sub>4</sub>; decomposes at 800 degrees C. A special electroceramic of high resistivity.
Industry:Mining