Leu"co*phane (lū"k?*fān),
n. [Gr. leykofanh`s appearing bright or
white; leyko`s white + fai`nein to show: cf. G.
leukophan.] (Min.) A mineral of a greenish yellow
color; it is a silicate of glucina, lime, and soda with fluorine.
Called also leucophanite.