freirinite

noun

frei·​ri·​nite

frāˈrēˌnīt

plural -s

often capitalized

: a mineral Na₃Cu₃(AsO₄)₂(OH)₃.H₂O consisting of a basic hydrous arsenate of sodium and copper

Word History

Etymology

Freirina, north central Chile, its locality + English -ite

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