LAZULITE

lazulite. Lazulite, n. a species of argillaceous earth or zeolite of a blue color

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Laz″u‐lite (?), n. [[From lazuli : cf. F. lazulite, G. lazulith.]] (Min.) A mineral of a light indigo-blue color, occurring in small masses, or in monoclinic crystals; blue spar. It is a hydrous phosphate of alumina and magnesia.