'Marcasite' definitions:
Definition of 'Marcasite'
From: GCIDE
- Marcasite \Mar"ca*site\, n. [F. marcassite; cf. It. marcassita, Sp. marquesita, Pg. marquezita; all fr. Ar. marqash[imac]tha.] (Min.) A sulphide of iron resembling pyrite or common iron pyrites in composition, but differing in form; white iron pyrites. [1913 Webster]
- Golden marcasite, tin. [Obs.] [1913 Webster] Marcasitic