Mineral mining

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

Collapse breccia

Mining; General mining

A breccia formed by the collapse of rock overlying an opening, as by foundering of the roof of a cave or of the roof of country rock above an intrusion; e.g., a solution breccia.

Founder breccia

Mining; General mining

A breccia formed by the collapse of rock overlying an opening, as by foundering of the roof of a cave or of the roof of country rock above an intrusion; e.g., a solution breccia.

Contact breccia

Mining; General mining

A breccia around an igneous intrusion, caused by wall-rock fragmentation and consisting of both intrusive material and wall rock; intrusion breccia. Compare: agmatite.

Tectonic breccia

Mining; General mining

A breccia formed as a result of crustal movements, usually developed from brittle rocks. Compare: fault breccia; fold breccia; crush breccia.

Dixanthogen

Mining; General mining

A breakdown product of xanthate collectors (flotation agents) with some residual value for that purpose.

Duplex breaker

Mining; General mining

A breaker having more than one crushing chamber.

Syphon brick

Mining; General mining

A brick for tapping metal from the cupola, the primary object of which is to eliminate the tapping and botting up of the cupola tap hole each time metal is drawn off. With the syphon brick, the ...