euchroite

noun

eu·​chro·​ite

ˈyükrōˌīt

plural -s

: a mineral Cu₂(AsO₄)(OH).3H₂O consisting of a basic copper arsenate in emerald-green orthorhombic crystals (hardness 3.5–4, specific gravity 3.39)

Word History

Etymology

German euchroit, from Greek euchroos well-colored (from eu- + -chroos -chroous) + German -it -ite

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