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
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Mineral mining
Framed dam
Mining; General mining
A barrier, generally built of timber framed to form a water face, supported by struts.
Sheffield process
Mining; General mining
A basic open-hearth process using charges so low in sulphur and phosphorus that they could be used in the acid process; the pig iron charged is hematite iron. The charge contains all the elements ...
Gerhardite
Mining; General mining
A basic copper nitrate containing 52.9% copper. Crystallization, orthorhombic. Cleavage, yields flexible laminae. Tenacity, fragile, and sectile. Mohs hardness, 2; sp gr, 3.426; luster, vitreous, ...
Process flowsheet
Mining; General mining
A basic flowsheet indicating the main operational steps within a plant, the movement of the various materials between the steps, and the final products obtained, and often also the quantities of ...
Hydrocerussite
Mining; General mining
A basic carbonate of lead, Pb 3 (CO 3 ) 2 (OH) 2 . It occurs as a secondary mineral found associated with leadhillite, matlockite, cerussite, mendipite, and paralaurionite.
Peirce-Smith process
Mining; General mining
A basic converting process for copper matte in a magnesite-lined converter. The iron of the matte is fluxed by silica added before the process begins.
