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

Hot cell

Mining; General mining

A heavily shielded enclosure in which radioactive materials can be handled remotely through the use of manipulators and viewed through shielded windows so that there is no danger to personnel.

Sintering

Mining; General mining

A heat treatment for agglomerating small particles to form larger particles, cakes, or masses; in case of ores and concentrates, it is accomplished by fusion of certain constituents.

Meco-Moore cutter loader

Mining; General mining

A heavy 120-hp (89.5-kW) cutter loader. The first Meco-Moore was used in a Lancashire, England, colliery in 1934.

Wild heat

Mining; General mining

A heat of molten steel that is boiling violently, and so, if poured, honeycombs an ingot with contained gases.

Blast hearth

Mining; General mining

A hearth in connexion with which a blast is used, as in reducing lead ore.

Gauging

Mining; General mining

A heap of rubbish placed at the entrance of a disused roadway underground.

Beryl

Mining; General mining

A hexagonal mineral, Be 3 Al 2 Si 6 O 18 ; green, blue-green, and other pale tints; in granite pegmatites, mica schists, and an accessory mineral in felsic igneous rocks; the chief source of ...