Cāch'o-lōng, n.

(kăsh'o-lōng), n. [Fr. cacholong, said to be from Cach, the name of a river in Bucharia, and cholon, a Calmuc word for stone.] (Min.) An opaque or milk-white chalcedony, a variety of quartz. It often envelops common chalcedony, and is sometimes associated with flint. Dana.