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Common pyrites | Pyrites \Py*ri"tes\, n. [L., fr. Gr. ?, fr. ? fire. See {Pyre}.] (Min.) A name given to a number of metallic minerals, sulphides of iron, copper, cobalt, nickel, and tin, of a white or yellowish color. [1913 Webster] Note: The term was originally applied to the mineral pyrite, or iron pyrites, in allusion to its giving sparks when struck with steel. [1913 Webster] {Arsenical pyrites}, arsenopyrite. {Auriferous pyrites}. See under {Auriferous}. {Capillary pyrites}, millerite. {Common pyrites}, isometric iron disulphide; pyrite. {Hair pyrites}, millerite. {Iron pyrites}. See {Pyrite}. {Magnetic pyrites}, pyrrhotite. {Tin pyrites}, stannite. {White iron pyrites}, orthorhombic iron disulphide; marcasite. This includes cockscomb pyrites (a variety of marcasite, named in allusion to its form), spear pyrites, etc. {Yellow pyrites}, or {Copper pyrites}, the sulphide of copper and iron; chalcopyrite. [1913 Webster] |
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