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United States Bureau of Mines
المجال: 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 variety of tennantite with arsenic partly replaced by bismuth and antimony.
Industry:Mining
A variety of tetrahedrite that contains lead and silver.
Industry:Mining
A variety of the mineral serpentine, resembling bowenite, occurring in China; used as an ornamental stone.
Industry:Mining
A variety of thorium silicate; thorite containing a small percentage of oxide of uranium.
Industry:Mining
A variety of titanite containing yttria; found in Sweden.
Industry:Mining
A variety of titanite containing yttrium or cerium.
Industry:Mining
A variety of topaz occurring in massive columnar aggregates. Also spelled pychite.
Industry:Mining
A variety of tourmaline found in the Ural Mountains, Russia, and Maryland.
Industry:Mining
A variety of uraninite containing a large percentage of UO<sub>3</sub>; also rich in helium. Contains about 10% of the yttrium earths.
Industry:Mining
A variety of uraninite containing thorium in partial substitution for uranium.
Industry:Mining