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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 ...
A blue to violet gem variety of zoisite.
Industry:Mining
A blue variety of elbaite tourmaline.
Industry:Mining
A blue-green beryl from Siberia, Russia.
Industry:Mining
A bluish iron-bearing mineral; specif: crocidolite and vivianite.
Industry:Mining
A bluish-black carbonaceous clay, shale, or slate, used as a pigment or crayon.
Industry:Mining
A bluish-white diamond of modern cut.
Industry:Mining
A board fitted across a compartment in an ore washer to retain the heavy ore and allow the light material to flow away.
Industry:Mining
A board or small platform placed at a suitable height in a drill tripod or derrick so that a worker standing on it can handle the drill rod stands.
Industry:Mining
A board usually posted at the entrance to a mine or to a section of a mine on which (1) miners hang their identification checks to show whether they are in or out, or (2) the miners' loading checks are hung.
Industry:Mining
A board with projecting dowels or pipe fingers located in the upper part of the drill derrick or tripod to support stands of drill rod, drill pipe, or casing. Compare: finger.
Industry:Mining
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