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

An igneous rock structure of tabular sheets suggesting stratification. It is formed by contraction during cooling; the structure is parallel to the surface of cooling and is commonly accentuated by ...

hypabyssal rock

Mining; General mining

An igneous rock that has risen from the depths as magma but solidified mainly as such minor intrusions as dikes and sills.

letter stone

Mining; General mining

An igneous rock with sheath and core structure giving the appearance of letters on its surface.

aschisite

Mining; General mining

An igneous rock with the same chemical composition as its parent magma, i.e., undifferentiated. Compare: diaschistic

flow layer

Mining; General mining

An igneous-rock layer, differing mineralogically or structurally from the adjacent layers, which was produced by flowage before the complete solidification of the magma. Compare: flow line; ...

fuse

Mining; General mining

An igniting or explosive device in the form of a cord, consisting of a flexible fabric tube and a core of low explosive (safety fuse) or high explosive (detonating cord).