- 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 ...
Calcium oxide (quicklime) formed from limestone, or other forms of calcium carbonate, which has been calcined at high temperature to drive off the carbon dioxide.
Industry:Mining
Mild steel strip, often of Bessemer steel, from which tubes are made by drawing it through a welding bell, at welding temperature, to produce butt-welded or lap-welded tubes or pipes.
Industry:Mining
One of two commodities that must be produced to make a mine economic; both influence output. A byproduct is produced in association with a main product or with coproducts.
Industry:Mining
Eng. Soft, bluish earth. Used by well sinkers in Cambridgeshire and Huntingdonshire.
Industry:Mining
Cut in a style characterized by a smooth-domed, but unfaceted, surface; e.g., a ruby cut en cabochon in order to bring out the star. Etymol: French. See cabochon for those gems that depend for their beauty largely upon minute oriented inclusions (e.g., crocidolite, star ruby, or sapphire), the plan of the stone being circular or oval.
Industry:Mining
Coal that can be converted into useful coke that must be strong enough to withstand handling. There is no direct relation between the elementary composition of coal and coking quality, but generally coals with 80% to 90% carbon on a dry, ash-free basis are most satisfactory.
Industry:Mining
