Alleghanyite

noun

Al·​le·​gha·​ny·​ite

ˌaləˈgānēˌīt

plural -s

: a mineral consisting of a pink basic silicate of manganese Mn₅Si₂O₈(OH)₂

Word History

Etymology

Alleghany county, North Carolina + English -ite

First Known Use

circa 1939, in the meaning defined above

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