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

soda spar

Mining; General mining

An informal term for sodic feldspar, i.e. albite, or for a feldspar mixture assaying at least 7% Na 2 O.

Na-spar

Mining; General mining

An informal term for sodic feldspar, i.e. albite, or for a feldspar mixture assaying at least 7% Na 2 O.

lime set

Mining; General mining

An infusible slag, too high in lime, in an iron blast furnace.

ore dike

Mining; General mining

An injected wall-like intrusion of magmatic ore, forced in a liquid state across the bedding or other layered structure of the invaded formation.

insufflator

Mining; General mining

An injector for forcing air into a furnace.

vane shear test

Mining; General mining

An in-place shear test in which a rod with thin radial vanes at the end is forced into the soil and the resistance to rotation of the rod is determined.

An in-place test to measure the shear strength of fine-grained cohesive soils and other soft deposits. A rod with four flat radial blades, or vanes, projecting at 90 degrees 3475 intervals is forced ...