annabergite

noun

an·​na·​berg·​ite

ˈanəˌbərˌgīt

plural -s

: a mineral consisting of a hydrous nickel cobalt arsenate (Ni, Co)₃(AsO₄)₂·8H₂O occurring in apple-green masses or capillary crystals and isomorphous with erythrite

Word History

Etymology

Annaberg, Saxony, Germany, its locality + English -ite

First Known Use

1852, in the meaning defined above

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