6 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
Too wet
Mining; General mining
A mine-safety expression used to describe those mines or areas of mines that are too wet to propagate explosions even though they are not rock dusted. Too wet is when water exudes from a ball of dust ...
Camel back
Mining; General mining
A miner's term sometimes applied to such structures as bells, pots, kettle bottoms, or other rock masses that tend to fall easily from a mine roof.
Burleigh
Mining; General mining
A miner's term for any heavy two-person drill. The Burleigh was the first successful machine rock drill.
Green roof
Mining; General mining
A miner's term for a roof that has not broken down or shows no sign of taking weight.
Before breast
Mining; General mining
A miner's term for that part of the orebody that still lies ahead.
