zinnwaldite

noun

zinn·​wald·​ite

ˈtsinˌvälˌtīt

plural -s

: a pale violet, yellow, brown, or dark gray mineral K₂(Li,Fe,Al)₆(Si,Al)₈O₂₀(OH,F)₄ that consists of mica containing iron and lithium

Word History

Etymology

German zinnwaldit, from Zinnwald, Bohemia, its locality + German -it -ite

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