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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
Clinton ore
Mining; General mining
A red, fossiliferous sedimentary iron ore; e.g., the Clinton Formation (Middle Silurian) or correlative rocks of the east-central United States, containing lenticular or oolitic grains of hematite. ...
toad's-eye tin
Mining; General mining
A reddish or brownish variety of cassiterite in botryoidal or reniform shapes with internal concentric or fibrous structure.
rosin tin
Mining; General mining
A reddish or yellowish variety of cassiterite. Also spelled resin tin.
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