A yellow copper ore (CuFeS2) made up of copper and iron sulfide.
1Quartz with specular iron ore. Greenstone, with chalcedony and copper pyrites.
2One piece must contain copper pyrites and the other zincites.
3But since about 1860 sulphuric acid has been more largely made from iron or copper pyrites.
4Quartz, containing disseminated hematitic iron-ore and copper pyrites.
5Thallium is a rare metal, found in small quantities in some varieties of iron and copper pyrites, and in some lithia micas.
6Copper pyrites (or yellow ore), erubescite (or purple ore), and chalcocite (or grey ore) are the most important.
7Copper pyrites, by its aspect from the other minerals, and from iron pyrites by its inferior hardness and less gravity.
Translations for copper pyrites