5 Terms
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Mineral mining
The extraction of valuable minerals or other geological materials from the earth for economic interests.
Industry: Mining
Add a new termContributors in Mineral mining
Mineral mining
Specularite
Mining; General mining
A black or grey variety of hematite with splendant metallic luster, often showing iridescence; occurs in micaceous or foliated masses or in tabular or disklike crystals.
Summer black oil
Mining; General mining
A black lubricating oil of 540 degrees F (282 degrees C) fire test, used as a heavy tempering oil and for waterproofing cement.
Nero-antico
Mining; General mining
A black marble found in Roman ruins, probably from the Taenarian peninsula, Greece.
Annerodite
Mining; General mining
A black mixture of samarskite with parallel overgrowths of columbite. Also spelled aanerodite.
Black amber
Mining; General mining
A black variety of retinite having a very high oxygen content (23%).
Explosive antimony
Mining; General mining
A black powder obtained either by the rapid cooling of antimony vapour or by the electrolysis of a solution of antimony chloride in hydrochloric acid, using a platinum cathode and an antimony anode. ...
