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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 ...
Refers to crystals with three distinctly different dimensions. Compare: acicular; tabular; rodlike; equant.
Industry:Mining
Refers to elongate crystals. Compare: acicular; equant; tabular; lathlike.
Industry:Mining
Refers to metal, such as silver or stainless steel, which has been clad with a precious metal and rolled to reduce the thickness of the coat.
Industry:Mining
Refers to particles collected by filtration from ambient air.
Industry:Mining
Refers to sediments of the deep sea that contain terrestrial detritus.
Industry:Mining
Refers to the annual labor required of the locator of a mining claim after discovery (and not to work done before discovery).
Industry:Mining
Refers to the hexagonal, trigonal, and tetragonal crystal systems; i.e., having the lateral crystal axes a<sub>1</sub>and a<sub>2</sub>of equal length. Compare: isometric; anisometric.
Industry:Mining
Refers to the rising of the bottom after removal of the coal.
Industry:Mining
Refers to vegetable accumulations laid down on a wet substratum in contrast to those deposited under water. Compare: phenhydrous
Industry:Mining
Refined gold or silver in the form of bars of convenient sizes and weights for handling and storage.
Industry:Mining
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