petalite
Pet"al*ite, n. Etym: [Cf. F. pétalite.] (Min.) Defn: A rare mineral, occurring crystallized and in cleavable masses, usually white, or nearly so, in color. It is a silicate of aluminia and lithia.
Pet"al*ite, n. Etym: [Cf. F. pétalite.] (Min.) Defn: A rare mineral, occurring crystallized and in cleavable masses, usually white, or nearly so, in color. It is a silicate of aluminia and lithia.