Ad'ū-lā'rĭ-ā, n.
n. [Fr. adulaire, from Adula, a mountain in Switzerland, now St. Gothard.] (Min.) A transparent or translucent variety of feldspar, found in granitic rocks. Among its varieties are moonstone and sunstone. Dana.
n. [Fr. adulaire, from Adula, a mountain in Switzerland, now St. Gothard.] (Min.) A transparent or translucent variety of feldspar, found in granitic rocks. Among its varieties are moonstone and sunstone. Dana.