Mär'ea-sīte, n.
(49), n. [It. marcassita; Fr. marcasite.] (Min.) A variety of iron pyrites, often containing a small proportion of arsenic; white iron pyrites.
(49), n. [It. marcassita; Fr. marcasite.] (Min.) A variety of iron pyrites, often containing a small proportion of arsenic; white iron pyrites.