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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 ...
A clay formed from the products of the abrasion of rocks.
Industry:Mining
A clay found in the place where it was formed. Compare: residual clay; secondary clay.
Industry:Mining
A clay mineral having 1:1 regular interstratification of trioctahedral chlorite with either trioctahedral vermiculite or trioctahedral smectite.
Industry:Mining
A clay mineral intermediate to kaolinite and halloysite; a disordered kaolinite.
Industry:Mining
A clay mineral near kaolinite, but containing excess silica, probably as interlayered sheets. Monoclinic.
Industry:Mining
A clay mineral with regularly interstratified mica and smectite layers.
Industry:Mining
A clay mineral with regularly interstratified mica and smectite layers.
Industry:Mining
A clay of low to medium plasticity owing to a relatively high content of silt or sand. Compare: fat clay.
Industry:Mining
A clay of the illite group, formed by the alteration of volcanic ash; a metabentonite.
Industry:Mining
A clay of the illite group, formed by the alteration of volcanic ash; a metabentonite.
Industry:Mining
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