Mineral mining

Mineral mining

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

Industry: Mining

Add a new term

Contributors in Mineral mining

Become a Contributors

Mineral mining

normal arc

Mining; General mining

A term specif. intended to differentiate between the arcs that are commonly observed and the low-pressure skittering arcs.

A term suggested for minerals such as chlorite, chloritoid, talc, albite, epidote, amphiboles, and kyanite, whose formation in metamorphosed rocks is favored by shearing stress. Compare: antistress ...

antistress mineral

Mining; General mining

A term suggested for minerals such as cordierite, the feldspars, the pyroxenes, forsterite, and andalusite, whose formation in metamorphosed rocks is believed to be favored by conditions that are not ...

zone of discharge

Mining; General mining

A term suggested for that part of the zone of saturation having a means of horizontal escape.

equivalent orifice

Mining; General mining

A term that compares the resistance of air of a mine to the resistance of a circular opening in a thin plate through which the same quantity of air flows under the same pressure as in the mine.

tripolite

Mining; General mining

A term that has been applied as a syn. of diatomite, in reference to the material from the north African location of Tripoli. It has also been used, less correctly, as a syn. of tripoli.