zinnwaldite

[ tsin-vahl-tahyt ]

noun

, Mineralogy.

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

Word History and Origins

Origin of zinnwaldite¹

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

Example Sentences

Speculators probing the ground on either side of the German-Czech border think they can profitably produce lithium from zinnwaldite, a mineral often found encased in granite-like rocks.

From Wall Street Journal