Pēc'to-līte, n.

(49), n. [Lat. pecten, a comb, and Gr. λίθος, a stone.] (Min.) A grayish or whitish mineral, occurring in aggregated crystals of a silky luster, and arranged in stellar or radiated forms, or in fibrous masses. It consists of the hydrous silicate of alumina, lime, and soda. Dana.