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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 ...
An impure variety of agate consisting of jasper with veins of chalcedony.
Industry:Mining
An impure variety of agate consisting of jasper with veins of chalcedony.
Industry:Mining
An impure variety of bornite, containing zinc, lead, and silver sulfides.
Industry:Mining
An impure variety of chrysocolla containing copper carbonate.
Industry:Mining
An impure variety of jamesonite.
Industry:Mining
An impure, hydrous nickel silicate from Revda (Revdinsk), Ural Mountains, Russia. Also spelled revdinite, revdinskite, rewdinskit, rewdanskite; rewdjanskit, and refdanskite.
Industry:Mining
An incipient breccia having fragments parted by planes of rupture but showing little or no displacement. It is commonly a chemical deposit.
Industry:Mining
An inclined board on which ore slimes are washed, as in a buddle.
Industry:Mining
An inclined passage, from 3 to 4 ft (approx. 1 m) square, for the transfer of ore to a lower level, car, conveyor, etc. It may be constructed through waste fills.
Industry:Mining
An inclined plane upon which the weight or force of gravity acting on the full cars is sufficient to overcome the resistance of the empties; in other words, the full car, running down, pulls the other car (empty) up.
Industry:Mining
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