zinnwaldite

[ tsin-vahl-tahyt ]
/ ˈtsɪn vɑlˌtaɪt /

noun Mineralogy.

a yellow-brown variety of mica containing iron, found with tin ores.

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Origin of zinnwaldite

1860–65; named after Zinnwald, village in the Czech Republic where first found; see -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020