zinnwaldite

zinnwaldite

[tsin-vahl-tahyt]
noun Mineralogy.
a yellow-brown variety of mica containing iron, found with tin ores.

Origin:
1860–65; named after Zinnwald, village in the Czech Republic where first found; see -ite1

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WordNet
zinnwaldite

noun
a mica containing iron and lithium 
WordNet® 3.0, © 2006 by Princeton University.
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