Prĕhn'ite, n.

(prĕn'it), n. [From Colonel Prehn, who first discovered the mineral at the Cape of Good Hope.] (Min.) A pale-green mineral, of a vitreous luster, occurring in botryoidal and mammillary concretions, and in small prismatic crystals. It consists of silica, alumina, and lime, with some water. Dana.