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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 ...
Fragments of rocks still possessing the original shape and angles, Derbyshire, U.K.
Industry:Mining
Frame set into the inside of a shaft prior to breaking through for a heading.
Industry:Mining
Free acidity is considered to be the portion of the total acidity that exists in the form of acid, both ionized and un-ionized.
Industry:Mining
Free graphite that forms and floats out of molten hypereutectic cast iron as it cools.
Industry:Mining
Freed from water or lacking water.
Industry:Mining
French water sapphire. An intense-blue variety of the mineral cordierite, occurring in waterworn masses in the river gravels of Ceylon; used as a gem stone.
Industry:Mining
Frequently used in geophysics to describe the decrease in temperature that always occurs at great depths.
Industry:Mining
Fresh clay, as distinguished from that which has been fired.
Industry:Mining
Freshly exposed roof that is unknown in quality.
Industry:Mining
Frictional pressure drop (Delta p<sub>t</sub>) of fluid flowing in a pipe; Delta p<sub>t</sub>&#61; 2f(v<sub>2</sub>/g)(l/d) , where f is a function of the Reynolds number, v &#61; rate of flow, g is acceleration due to gravity, l and d are length and diameter of pipe.
Industry:Mining