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United States Bureau of Mines
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 ...
Refined or commercial copper.
Industry:Mining
Reflection at definite and characteristic angles from space lattices of crystals of X-rays that have been caused to bombard them, thus giving data for identification of characteristic lattice structure of a given species of mineral.
Industry:Mining
Refraction shown by certain crystals that split the incident ray into two refracted rays, polarized in perpendicular planes.
Industry:Mining
Refractories in which the constituents are held together by a suitable bonding material, as distinguished from fused refractories.
Industry:Mining
Refractories in which the constituents are held together by heating to either the point of fusion or coalescence.
Industry:Mining
Refractories made from quartzite, bonded by lime, and consisting essentially of silica, usually with about 2% of lime, and small quantities of iron oxide, alumina, and alkalies.
Industry:Mining
Refractories that consist essentially of magnesia, lime, chrome ore, or forsterite, or mixtures of two or more of these.
Industry:Mining
Refractory consisting essentially of refractory-grade chrome ore bonded chemically or by burning. Chrome refractories are nearly chemically neutral, but may react with strong acids or bases.
Industry:Mining
Refractory materials used to protect the walls of the furnace from reaction with its molten contents (abrasive, melting, or chemical). Three divisions are (1) acid refractories rich in silica (flint, ganister, fireclay), which react with basic oxides; (2) neutral refractories (chromite, graphite), and (3) basic refractories, rich in oxides of calcium and magnesium and low in silica.
Industry:Mining
Refractory product made of clay-silica mixture or pure silica.
Industry:Mining
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