leucite

Leu"cite, n. Etym: [Gr.leucite.] 1. (Min.) Defn: A mineral having a glassy fracture, occurring in translucent trapezohedral crystals. It is a silicate of alumina and potash. It is found in the volcanic rocks of Italy, especially at Vesuvius. 2. (Bot.) Defn: A leucoplast.

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