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n. A mineral with monoclinic crystals, KLiFe2+Al(AlSi3)O10(F,OH)2, of the mica group.

n. A kind of mica containing lithium, often associated with tin ore.

n. 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.

n. a mica containing iron and lithium

"These include the cesium - and potassium-rich zeolites, pollucite and leucite, and the lithium-rich mica, zinnwaldite (a variety of the mineral lepidolite)."

isinglass    mica