- 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 ...
An earthy, secondary lead, zinc, and copper vanadate; occurs near Arqueros, Chile; related to psittacinite.
Industry:Mining
An easily fusible clay containing a high percentage of fluxing impurities, used to produce a natural glaze on the surface of clayware.
Industry:Mining
An eccentric roller or a roller fitted with devices such as bars welded longitudinally along its outer casing, so arranged as to rap the belt and knock off fine coal or dust adhering to the return belt, or to centralize the coal on the carrying belt.
Industry:Mining
An eccentric sampling device that gouges a small sample, sometimes in the form of a core, from the sidewall of a borehole.
Industry:Mining
An eccentric sampling device that gouges a small sample, sometimes in the form of a core, from the sidewall of a borehole.
Industry:Mining
An edge wheel revolving in a trough for crushing asbestos mineral, without destroying the fiber, and for fine crushing of ore.
Industry:Mining
An effective dichromatic color filter transmitting light of only two wavelength regions-- one in the deep red, the other in the yellow green. Useful for discriminating between emerald and its imitations and for detecting synthetic spinels and pastes colored blue with cobalt.
Industry:Mining
An elastic wave in which the energy is confined to the surface or a narrow region just below the free surface of an extended solid. These waves readily follow the curvature of the part being inspected and are reflected only from sharp changes of direction at the surface.
Industry:Mining
An elastic, hard and tough alloy, composed of 80% to 95% copper, 5% to 15% tin, with phosphorus up to 2.5%.
Industry:Mining
An electric appliance or an adjustable electric appliance used in circuit with a motor to adjust the power factor.
Industry:Mining
