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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 ...
Name in the trade for diamonds occurring in the gravels and old marine deposits on the Gold Coast of Africa.
Industry:Mining
NaNbO<sub>3</sub>; a compound believed to be ferro-electric and having potential use as a special electroceramic. The Curie temperature is 360 degrees C.
Industry:Mining
NaTaO<sub>3</sub>; a ferro-electric compound having the ilmenite structure at room temperature; the Curie temperature is approx. 475 degrees C. Of potential interest as a special electroceramic.
Industry:Mining
National, State, and local laws, or enforceable rules that govern coal mining.
Industry:Mining
Native calcium oxide, CaO, found on Mount Vesuvius, Italy. It formed from limestone enveloped in lava and altered by the heat of the lava.
Industry:Mining
Native copper transported from its source by a glacier.
Industry:Mining
Native gold alloyed with rhodium.
Industry:Mining
Native mercury; same as cinnabar (sulfide).
Industry:Mining
Native silver in the form of wires or threads.
Industry:Mining
Native sulfur mined by the Frasch hot-water process.
Industry:Mining
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