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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 scaling or spalling hammer.
Industry:Mining
A scaly, granular variety of anhydrite; may be admixed with silica; cut and polished for ornamental purposes.
Industry:Mining
A scaly, sometimes massive, white or yellowish clay related to fuller's earth, having a Si- Al ratio of about 4.
Industry:Mining
A scarp along a fault line, where the topographically low area is on the upthrown block. Compare: resequent fault-line scarp
Industry:Mining
A scheme of rock classification based upon the average size of certain chosen components; thus, each clan comprises coarse-, medium-, and fine-grained members.
Industry:Mining
A schist containing an appreciable amount of sillimanite (fibrolite).
Industry:Mining
A schist containing chlorite.
Industry:Mining
A schist derived from a sedimentary rock.
Industry:Mining
A schist derived from an igneous rock. Compare: paraschist; schist.
Industry:Mining
A schist in which talc is the dominant schistose mineral. Common associates are mica and quartz.
Industry:Mining