Category:Pyrite

Pyr"ite, n.; pl. Pyrites. Etym: [cf. F. pyrite. See pyrites.] (min.)

Defn: a common mineral of a pale brass-yellow color and brilliant Metallic luster, crystallizing in the isometric system; iron pyrites; Iron disulphide. Hence sable coal his massy couch extends, and stars of gold the Sparkling pyrite blends. E. Darwin.