Search Result for "zinnwaldite": 
Wordnet 3.0

NOUN (1)

1. a mica containing iron and lithium;


The Collaborative International Dictionary of English v.0.48:

Zinnwaldite \Zinn"wald*ite\, n. [So called after Zinnwald, in Bohemia, where it occurs.] (Min.) A kind of mica containing lithium, often associated with tin ore. [1913 Webster]
WordNet (r) 3.0 (2006):

zinnwaldite n 1: a mica containing iron and lithium