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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 ...
Various salts, commonly halotrichite.
Industry:Mining
Various types of mechanical or photographic devices used to determine the compass bearing and inclination of the course of a borehole. Compare: clinometer
Industry:Mining
Various types of specialized plant used solely for road construction, including such machines as planers, scarifiers, rollers, pavers, finishers, gritters, and mixers.
Industry:Mining
Varying proportions of Al<sub>2</sub>O<sub>3</sub>and SiO<sub>2</sub>. Occur naturally in clays. Used in the glass and ceramics industry.
Industry:Mining
VCF; evaporated salt made in vacuum pans; of ordinary purity and ordinary screen analysis.
Industry:Mining
Vein quartz containing slabs, blades, or laminar films of other material.
Industry:Mining
Veins barren of economic minerals.
Industry:Mining
Veins of fibrous minerals, esp. asbestos, in which the fibers are at right angles to the walls of the vein. Compare: slip fiber
Industry:Mining
Veins of fibrous minerals, esp. asbestos, in which the fibers are more or less parallel to slickensided vein walls. Compare: cross fiber
Industry:Mining
Veins that cross each other, forming a network.
Industry:Mining
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