- Industry: 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 ...
In air velocity determination, the ratio of the mean velocity to the velocity measured at the center. This ratio is found to be dependent upon the Reynolds number.
Industry:Mining
One of the four distinctive and visibly differing portions forming the mass of an ordinary bituminous coal that can be recognized and separated macroscopically by hand, and microscopically in thin sections, and that are not, in themselves, chemical entities; i.e., vitrain, clarain, fusain, and durain.
Industry:Mining
Continuous belt, system of rollers, or inclined chute down which loaded material gravitates without the application of power.
Industry:Mining
Lowest layer or layers of rock immediately above an underground opening.
Industry:Mining
Locked safety lamp or any other means of lighting, the use of which below ground in British coal mines is authorized by Regulations under the Act.
Industry:Mining
Eng. A piece of rich ore used to tempt persons into a mining enterprise.
Industry:Mining
Calcite in acute scalenohedral crystals facing like dogs' teeth into an open cavity or vein.
Industry:Mining
