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