stilbite

Stil"bite, n. Etym: [Gr. stilbite.] (Min.) Defn: A common mineral of the zeolite family, a hydrous silicate of alumina and lime, usually occurring in sheaflike aggregations of crystals, also in radiated masses. It is of a white or yellowish color, with pearly luster on the cleavage surface. Called also desmine.

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