/kooh"peuh ruyt'/, n.
a mineral, sulfide and arsenide of platinum, occurring in igneous rocks in the form of steel-gray crystals.
[after R. A. Cooper, who described it in 1920; see -ITE1]

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Universalium. 2010.

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  • Cooperite — is a grey mineral consisting of platinum sulfide (PtS), generally in combinations with sulfides of other elements such as palladium and nickel (PdS and NiS). Its general formula is (Pt,Pd,Ni)S. It is a dimorph of braggite.[1] It is mined as an… …   Wikipedia

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  • cooperite — coop·er·ite …   English syllables

  • cooperite — ˈküpəˌrīt noun ( s) Etymology: R. A. Cooper fl ab1920, who first described it + English ite : a steel gray mineral PtS of metallic luster consisting of a sulfide of platinum belonging to the tetragonal system and occurring usually in irregular… …   Useful english dictionary

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