5 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
Barrel
Mining; General mining
A barrel-shaped hoppit designed to collect and hoist water from the bottom of a sinking shaft. Water barrels are now obsolete. See also: pneumatic water barrel; sinking pump; water kibble.
Bailer
Mining; General mining
A barrel-shaped hoppit designed to collect and hoist water from the bottom of a sinking shaft. Water barrels are now obsolete. See also: pneumatic water barrel; sinking pump; water kibble.
Powder barrel
Mining; General mining
A barrel made for the conveyance of gunpowder, usually holding 100 lb (45.4 kg). Compare: powder keg.
Cleanup barrel
Mining; General mining
A barrel used to batch grind and then amalgamate gold-bearing concentrates and residues.
Pit-eye pillar
Mining; General mining
A barrier of coal left around a shaft to protect it from caving.
