- 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 change occurring within a sediment after its deposition and during and after its lithification, exclusive of weathering. It includes such processes as compaction, cementation, replacement, and crystallization, under normal surficial conditions of pressure and temperature.
Industry:Mining
Any classification based on manner of origin or line of descent. Genetic classifications are set up to deal with fossils, rocks, and minerals.
Industry:Mining
Any clay or mudstone with a cuboidal fracture, as in the Kimmeridge clay.
Industry:Mining
Any clay, but chiefly kaolinite, which, when mixed with water, is easily shaped and retains this shape until fired.
Industry:Mining
Any coal microlithotype containing 20% to 60% by volume of carbonate minerals (calcite, siderite, dolomite, and ankerite).
Industry:Mining
Any coal microlithotype containing 20% to 60% by volume of clay minerals, mica, and in lesser proportions, quartz.
Industry:Mining
Any coal microlithotype containing 5% to 20% by volume of iron disulfide (pyrite and marcasite).
Industry:Mining
Any colorless mineral that if cut and polished makes a brilliant gem; e.g., zircon, corundum, and topaz. Having less dispersion, lower refractive index, and birefringence, they are easily distinguished from diamond.
Industry:Mining
Any combination of radon daughters in one liter of air that result in the ultimate emission of 1.3 X 10<sub>5</sub>million electrons volts (MeV) of alpha energy.
Industry:Mining
Any compound, as a caustic alkali, used in soapmaking to convert the fatty acids into soap. A term used in the flotation process.
Industry:Mining
