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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
yellow lead ore
Mining; General mining
A tetragonal mineral, PbMoO 4 ; prismatic cleavage; soft; resinous; yellow to brown; sp gr, 6.5 to 7.0; in oxidized zones of lead-molybdenum veins; a source of molybdenum.
paratellurite
Mining; General mining
A tetragonal mineral, TeO 2 ; rutile group; soft; waxy; gray-white; dimorphous with tellurite; at Cananea, Mexico.
thorogummite
Mining; General mining
A tetragonal mineral, Th(SiO 4 ) 1-x (OH) 4x ; may contain up to 31% uranium; has zircon structure. Differs from thorite (1) in being secondary, formed by the alteration of primary thorium minerals ...
thorian gummite
Mining; General mining
A tetragonal mineral, Th(SiO 4 ) 1-x (OH) 4x ; may contain up to 31% uranium; has zircon structure. Differs from thorite (1) in being secondary, formed by the alteration of primary thorium minerals ...
mackintoshite
Mining; General mining
A tetragonal mineral, Th(SiO 4 ) 1-x (OH) 4x ; may contain up to 31% uranium; has zircon structure. Differs from thorite (1) in being secondary, formed by the alteration of primary thorium minerals ...
maitlandite
Mining; General mining
A tetragonal mineral, Th(SiO 4 ) 1-x (OH) 4x ; may contain up to 31% uranium; has zircon structure. Differs from thorite (1) in being secondary, formed by the alteration of primary thorium minerals ...
ekanite
Mining; General mining
A tetragonal mineral, ThCa 2 Si 8 O 20 ; radioactive; metamict; from the gem pits of Eheliyagoda, Raknapura district, Sri Lanka; as fine crystals at the Mont St. Hilare Quarry, PQ, Canada.
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