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In addition to copper pyrites, brown iron ore was also found in the mine.
It's a rare metal, found in very small quantities in iron and copper pyrites.
Specimens of gold were found in town, and iron and copper pyrites in veins.
In the 19th century, Bogomolovskoye deposit of copper pyrites was opened.
Of all these, copper pyrites is the principle ore which yields nearly 76% of the world production of copper.
Copper Pyrite was the main product, but iron, lead, nickel and cobalt were also won.
In addition to copper pyrites, brown iron ore was also found in the mine.
It's a rare metal, found in very small quantities in iron and copper pyrites.
Specimens of gold were found in town, and iron and copper pyrites in veins.
In the 19th century, Bogomolovskoye deposit of copper pyrites was opened.
There are various mineral deposits in the county, including lodes of copper, coal and copper pyrite.
Of all these, copper pyrites is the principle ore which yields nearly 76% of the world production of copper.
Chalcopyrite (Copper Pyrite)
The company was founded as small mining business in Montecatini Val di Cecina operating a copper pyrite mine in 1888.
Wörterbuch für Geologie