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

T-chisel

Mining; General mining

A boring tool with its cut-edge made in the form of the letter T.

Ferroboron

Mining; General mining

A boron iron alloy containing 12% to 14% boron.

Conchilite

Mining; General mining

A bowl-shaped body of limonite or goethite growing in an inverted position on mineralized bedrock and resembling the shell of an oyster or clam coated with a rusty deposit. It is roughly oval or ...

A box or scoop into which broken rock is shovelled in a sinking shaft while the hoppit is travelling in the shaft. A small hoist is used to lift and discharge the pans into the hoppit on its return ...

Faceted boulder

Mining; General mining

A boulder that has been ground flat on one or more sides by the action of natural agents, such as by glacier ice, streams, or wind. Compare: faceted pebble.