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

dactylotype

Mining; General mining

A textural term applied by Shand in 1906 to the intergrowth of sodalite with orthoclase in borolanite and its associates. The sodalite is altered to pinitic mica and appears in threadlike or ...

equigranular

Mining; General mining

A textural term applied to rocks, the essential minerals of which are all of the same order of size.

panidiomorphic

Mining; General mining

A textural term for rocks in which all or almost all of the mineral constituents are idiomorphic or euhedral.

felsitic

Mining; General mining

A textural term ordinarily applied to dense, light-colored igneous rocks composed of crystals that are too small to be readily distinguished with the unaided eye; microcrystalline. It may also be ...

A textural term originally applied to phaneritic igneous rocks by analogy with the trachytic texture of some lava flows. In such rocks (e.g., many nepheline syenites), the feldspars have a parallel ...

clathrate

Mining; General mining

A texture found chiefly in leucite rocks, in which the leucite crystals are surrounded by tangential augite crystals in such a way as to suggest a net or a section of a sponge, the felted mass of ...