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Mineral mining
The extraction of valuable minerals or other geological materials from the earth for economic interests.
Industry: Mining
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Mineral mining
diamond-pyramid hardness test
Mining; General mining
An indention hardness test employing a 136 degrees diamond-pyramid indenter and variable loads enabling the use of one hardness scale for all ranges of hardness from very soft lead to tungsten ...
predicted 4-hour sweat rate
Mining; General mining
An index devised by the Medical Research Council of Great Britain which is based on the rate of loss of sweat from the body. It is designed to measure the physiological effect of work in near ...
Indian title
Mining; General mining
An Indian's right to occupancy of land, and that right recognized by the United States, constitutes Indian title.
cetane number
Mining; General mining
An indication of diesel fuel ignition quality. The cetane number of a fuel is the percentage by volume of cetane in a mixture of cetane and alpha methylnaphthalene, which matches the unknown fuel in ...
time break
Mining; General mining
An indication on a seismic record showing the instant of detonation of a shot or charge. Compare: time signal time mark.
geothermometer
Mining; General mining
An indicator of the temperature at which some reaction took place or some geologic process was active.
geologic thermometer
Mining; General mining
An indicator of the temperature at which some reaction took place or some geologic process was active.
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