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

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

• More than 250,000 words that aren't in our free dictionary
• Expanded definitions, etymologies, and usage notes
• Advanced search features
• Ad free!