colusite

noun

co·​lu·​site

kəˈlüˌsīt

plural -s

: a mineral consisting of a sulfide of copper and arsenic, tin, vanadium, iron, tellurium Cu₃(As,Sn,V,Fe,Te)S₄ occurring in tetrahedral crystals of bronze color

Word History

Etymology

Colusa, mining claim near Butte, Montana + English -ite

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