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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 ...
Glass through which objects can be seen.
Industry:Mining
Going back, as the gradual retreat of a waterfall or an erosional escarpment, the melting back of a glacier, or the withdrawal of a body of water so that the shoreline moves successively farther away from the higher land.
Industry:Mining
Gold alloyed with nickel or palladium to give it a white color.
Industry:Mining
Gold beaten or rolled out very thin; gold in sheets thicker than goldleaf.
Industry:Mining
Gold foil backed with other metal.
Industry:Mining
Gold in placer deposits of alluvial origin.
Industry:Mining
Gold occurring as large particles. Compare: nugget
Industry:Mining
Gold precipitated in fine particles from solution by a more active metal.
Industry:Mining
Gold that has become granular in the process of heating.
Industry:Mining
Gold that is not rounded and waterworn, but irregular and frequently twisted in form, usually very bright, and always of fine quality.
Industry:Mining