- 업종: 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 hexagonal mineral, Sr<sub>5</sub>(PO<sub>4</sub>)<sub>3</sub>(OH) ; apatite group; vitreous; light green; in sugary albite filling interstices between crystals of aegirine and eckermannite in veins in alkalic pegmatites from Inagil massif, southern Yakutia, Russia.
Industry:Mining
A hexagonal or monoclinic mineral, (Al,Li)MnO<sub>2</sub>(OH)<sub>2</sub>; powdery; black; occurs with other supergene manganese oxide minerals.
Industry:Mining
A high explosive, consisting of nitroglycerin and nitrocotton. It is a strong explosive, and a rubberlike, elastic substance, unaffected by water. Taken as a standard of explosive power. Compare: dynamite.
Industry:Mining
A high grade of marble; dark gray and white, variously mottled and blotched with yellow and red; from Nassau and Germany.
Industry:Mining
A high tower or condenser filled with coke. Used in the manufacture of hydrogen chloride gas to give a large surface for the union of a falling spray of water with the rising hydrochloric acid gas.
Industry:Mining
A high, iron blast furnace, in the upper part of which crude bituminous coal is converted into coke.
Industry:Mining
A high, isolated crag, pinnacle, or rocky peak; or a pile of rocks, much jointed and usually granitic, exposed to intense weathering, and often assuming peculiar or fantastic shapes, e.g., the granite rocks standing as prominent masses on the moors of Devon and Cornwall, England.
Industry:Mining
A high-air-pressure directional machine which operates in the manner of a whitewashing machine and displaces coal dust from the roof and sides. This machine carries 2 st (1.8 t) of stone dust, and traveling at 11 ft/min (3.4 m/min) distributes over 26 lb/min (11.8 kg/min) of dust.
Industry:Mining
A high-alumina refractory clay consisting essentially of the mineral diaspore. It has been interpreted as a desilication product of associated flint clay and other kaolinitic materials. Commercial diaspore of first-grade quality contains more than 68% alumina.
Industry:Mining
