4 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
sellaite
Mining; General mining
A tetragonal mineral, MgF 2 ; colorless; structurally related to rutile.
braunite
Mining; General mining
A tetragonal mineral, Mn 2+ Mn 3+ 6 SiO 12 ; brittle; may contain appreciable iron.
pyrolusite
Mining; General mining
A tetragonal mineral, MnO 2 ; rutile group; trimorphous with akhtenskite and ramsdellite; soft; metallic; steel gray; massive or reniform; a source of manganese. Compare: psilomelane gray manganese ...
sodium autunite
Mining; General mining
A tetragonal mineral, Na 2 (UO 2 )(PO 4 ) 2 .8H 2 O ; meta-autunite group; radioactive; yellow.
vysotskite
Mining; General mining
A tetragonal mineral, (Pd,Ni)S ; isomorphous with braggite; in minute grains or prisms; at Norilsk, Russia.
cooperite
Mining; General mining
A tetragonal mineral, (Pt,Pd,Ni)S ; sp gr, 9; in ultramafic rocks, such as the Bushveld, Transvaal, South Africa; an ore of platinum and palladium.
ilmenorutile
Mining; General mining
A tetragonal mineral, (Ti,Nb,Fe) 3 O 6 ; forms a series with strueverite in which tantalum substitutes for niobium; black; sp gr, 5.14.
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