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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 fibrous talc. From the German spath.
Industry:Mining
A fibrous variety of calcite.
Industry:Mining
A fibrous variety of chalcedony with fiber elongation perpendicular to the c crystallographic axis (opposite to normal chalcedony) and showing other optical anomalies.
Industry:Mining
A fibrous variety of chalybite (siderite), FeCO<sub>3</sub>.
Industry:Mining
A fibrous variety of ozocerite, a natural paraffin wax.
Industry:Mining
A fibrous variety of serpentine.
Industry:Mining
A fibrous variety of silica, possibly tridymite.
Industry:Mining
A field name for a medium- to coarse-grained granoblastic metamorphic rock with little or no foliation or lineation.
Industry:Mining
A field term denoting the degree of luster of attrital coal as it compares to the brilliant luster of vitrain associated in the same locality. Compare: bright attritus.
Industry:Mining
A field term denoting, in accordance with an arbitrary scale established for use in describing banded coal, a frequency of occurrence of vitrain bands comprising 30% to 60% of the total coal layer. Compare: dominant vitrain; moderate vitrain; sparse vitrain.
Industry:Mining