Auriferous pyrites

Auriferous 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]

The Collaborative International Dictionary of English. 2000.