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cooperite

[ koo-puh-rahyt ]
/ ˈku pəˌraɪt /
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noun
a mineral, sulfide and arsenide of platinum, occurring in igneous rocks in the form of steel-gray crystals.
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Origin of cooperite

After R. A. Cooper, who described it in 1920; see -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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