8 Terms
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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
adamic earth
Mining; General mining
A term used for common clay, in reference to the material of which Adam, the first man, was made; specif. a kind of red clay.
manganiferous iron ore
Mining; General mining
A term used for iron ores containing 5% to 10% manganese.
manganese ore
Mining; General mining
A term used for ore containing 35% or more manganese; it may include concentrate, nodules, or synthetic ore.
safety powder
Mining; General mining
A term used for short-flame explosives before the introduction of permissible explosives.
car spotter
Mining; General mining
A term used for the small hoist employed to haul a trip of empty cars under the loading end of a gathering conveyor or elevator.
tugger
Mining; General mining
A term used for the small hoist employed to haul a trip of empty cars under the loading end of a gathering conveyor or elevator.
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