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zinnwaldite

American  
[tsin-vahl-tahyt] / ˈtsɪn vɑlˌtaɪt /

noun

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


Etymology

Origin of zinnwaldite

1860–65; named after Zinnwald, village in the Czech Republic where first found; see -ite 1


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