Mineral mining

Mineral mining

The extraction of valuable minerals or other geological materials from the earth for economic interests.

Industry: Mining

Contributors in Mineral mining

Mineral mining

A term proposed by Shrock (1947) for a residual surficial layer produced by intense and prolonged chemical weathering and composed largely of certain original constituents of the source rock. Typical ...

ore magma

Mining; General mining

A term proposed by Spurr (1923) for a magma that may crystallize into an ore; the sulfide, oxide, or other metallic facies of a solidified magma.

axiolite

Mining; General mining

A term proposed by Zirkel for a variety of elongated spherulite in which there is an aggregation of minute acicular crystals arranged at right angles to a central axis rather than from a point.

shalene

Mining; General mining

A term proposed in place of gasoline for that product distilled from oil shale.

ionite

Mining; General mining

A term referring to two different materials found in the Ione Valley of northern California: (1) a clay mineral, possibly a variety of kaolinite, found as scales in the Ione sandstone formation, and ...

overfired

Mining; General mining

A term related to the condition of a ceramic product which has been heated to a temperature in excess of that required to produce proper vitrification.