- 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 ...
Any rock suitable for construction purposes, as distinguished from crushed stone or aggregate.
Industry:Mining
Any rock that contains one or more phosphatic minerals of sufficient purity and quantity to permit its commercial use as a source of phosphatic compounds or elemental phosphorus. About 90% of the world's production is sedimentary phosphate rock, or phosphorite; the remainder is igneous rock rich in apatite.
Industry:Mining
Any rock that contains one or more phosphatic minerals of sufficient purity and quantity to permit its commercial use as a source of phosphatic compounds or elemental phosphorus. About 90% of the world's production is sedimentary phosphate rock, or phosphorite; the remainder is igneous rock rich in apatite.
Industry:Mining
Any rock whose fabric reflects the history of its deformation; a rock whose fabric clearly displays coordinated geometric features that indicate continuous solid flow during formation (Turner and Weiss, 1963). Also spelled tektonite.
Industry:Mining
Any rock whose fabric shows no influence of movement of adjacent grains; e.g., a rock formed by mechanical settling. Some rocks are transitional between a tectonite and a nontectonite.
Industry:Mining
Any rotary, percussive, fusion-piercing, churn, or other type of drilling machine used to produce holes in which an explosive charge is placed.
Industry:Mining
Any rough material, either natural or artificial, that can be fashioned into a jewel. Compare: gemstone
Industry:Mining
Any sequence of rock units found in a given region either at the surface or below it (as in a drilled well or mine shaft); a local geologic column.
Industry:Mining
Any sequence of rock units found in a given region either at the surface or below it (as in a drilled well or mine shaft); a local geologic column.
Industry:Mining
Any sequence of rock units found in a given region either at the surface or below it (as in a drilled well or mine shaft); a local geologic column.
Industry:Mining
