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United States Bureau of Mines
行业: 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 ...
N. Staff. See: crossgate
Industry:Mining
N. Staff. The rise side of a heading driven on the strike.
Industry:Mining
N. Staff.; Som. A road or heading driven in coal measures, turned from a level, etc.
Industry:Mining
N.S.W. In most cases, understood to be the percentage of the metallic element present in the ore.
Industry:Mining
N.S.W. The second-class ore that requires dressing.
Industry:Mining
N.Z. A pebble or boulder made from a conglomerate of quartz pebbles cemented by chalcedony. Jaspilite, quartz, and Chinaman pebbles are found in many places.
Industry:Mining
Na<sub>2</sub>(UO<sub>2</sub>)<sub>2</sub>(ASO<sub>4</sub>)<sub>2</sub>.8H<sub>2</sub>O ; has been used as a source of uranium for uranium red.
Industry:Mining
Na<sub>3</sub>PO<sub>4</sub>, a chemical compound used in some enamel frit compositions.
Industry:Mining
Name applied to small coal mines that employ fewer than 15 miners. The so-called dogholes are most numerous in Kentucky, but there are many in Virginia and West Virginia.
Industry:Mining
Name for a double-pin-thread coupling used to connect two drill rods together.
Industry:Mining
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