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Meanings of copper pyrites in inglés
portugués
calcopirita catalán
calcopirita Usage of copper pyrites in inglés
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.