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United States Bureau of Mines
Industrie: 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 chisel used for making an edge on the face of a stone.
Industry:Mining
A chlorination process for recovering gold from its ore. For each ton (0.9 t) of ore in a revolving drum, 130 gal (492 L) of water, 30 lb (13.6 kg) of lime chloride, and 36 lb (16.3 kg) of concentrated sulfuric acid are added, and the drum is revolved for some time. A solution of gold chloride is thus obtained.
Industry:Mining
A chlorine-rich variety of hastingsite.
Industry:Mining
A chondritic stony meteorite composed of bronzite and olivine in a friable, breccialike mass of chondrules.
Industry:Mining
A chorismite having miarolitic cavities or remnants thereof; a variety of ophthalmite.
Industry:Mining
A chromian variety of alumohydrocalcite.
Industry:Mining
A chromian variety of clinochlore.
Industry:Mining
A chromian variety of diopside. Also spelled lavroffite; lawrowite.
Industry:Mining
A chromian variety of phengite, a siliceous variety of muscovite.
Industry:Mining
A chromiferous clay; specif. a bright-green clay material containing 2% to 10.5% Cr<sub>2</sub>O<sub>3</sub>.
Industry:Mining
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