cooperite

noun coop·er·ite \ˈküpəˌrīt\

Definition of cooperite

plural

-s

  1. :  a steel-gray mineral PtS of metallic luster consisting of a sulfide of platinum belonging to the tetragonal system and occurring usually in irregular grains

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Origin and Etymology of cooperite

R. A. Cooper, flourished about 1920, who first described it + English -ite


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