from The Century Dictionary.
- noun A kind of mica related to lepidolite, but containing both lithium and iron: it is often found associated with tin ores, as at Zinnwald in the Erzgebirge.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Min.) A kind of mica containing lithium, often associated with tin ore.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy A mineral with
monocliniccrystals, K Li Fe2+ Al(Al Si3) O10( F,O H)2, of the micagroup.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a mica containing iron and lithium
Sorry, no etymologies found.
These include the cesium - and potassium-rich zeolites, pollucite and leucite, and the lithium-rich mica, zinnwaldite (a variety of the mineral lepidolite).