- 行业: Mining
- Number of terms: 33118
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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 variety of grahamite from Estonia. Distinguished by the brown color of its powder and its greater solubility in turpentine and chloroform.
Industry:Mining
A variety of hectorite in which fluorine partially replaces hydroxyl. Compare: montmorillonite; smectite; saponite.
Industry:Mining
A variety of hematite with brilliant black color and metallic luster. See: hematite
Industry:Mining
A variety of hydrocarbon containing about 8% rare earths and found enclosed in a mineral kondrikite. From the Khibine Peninsula, Russia.
Industry:Mining
A variety of hydrocarbon found in lignite. According to Hintz it is identical with hartite.
Industry:Mining