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

hard-rock phosphate

Mining; General mining

A term used in Florida for pebbles and boulders of a hard massive homogeneous lightgray phosphorite, showing irregular cavities that are usually lined with secondary mammillary incrustations of ...

oiled

Mining; General mining

A term used in flotation when a particle is given a water repellent surface. When such a coating has been formed, the particle is said to be oiled or treated and ready to be floated.

radius of curve

Mining; General mining

A term used in laying mine track; the calculated radius of an arc that will connect two pieces of track (at a desired angle of direction from each other) with a smooth curve section.

amang

Mining; General mining

A term used in Malaysia for the heavy iron and tungsten minerals (and associated minerals) found with placer cassiterite deposits.

A term used in mine transportation for the period during which the loads (loaded mine cars) are taken away and a fresh trip of empties is brought back. This period is known as trip change in contrast ...

salitral

Mining; General mining

A term used in Patagonia for a swampy place where salts (esp. potassium nitrate) become encrusted in the dry season. Etymol: Spanish, saltpeter bed.

line drilling

Mining; General mining

A term used in quarrying to describe the method of drilling and broaching for the primary cut. In this method, deep holes are drilled close together in a straight line by 1803 means of a ...