Bornite
It is used to extract copper.
'Native Copper' was widely used by prehistoric peoples and was traditionally found in small amounts. More commonly it is found in oxidized ores, such as bornite, chalcocite or chalcopyrite. These ores have to undergo various treatments in order to extract the copper from within them.
I know the following ores of copper Chalcopyrite, Copper Glance, Chlcocite, Malachite, Cuprite
Bornite
Levien?
Bornite
It is used to extract copper.
Yes it does:)
It has been reported since 1725, but in 1845 it was named for Austrian mineralogist Ignaz von Born http://en.wikipedia.org/wiki/Bornite
brown to copper-red color
Bornite is a sulfide mineral, it is an important copper ore mineral and occurs widely in porphyry copper deposits along with the more common chalcopyrite.
The mineral is called bornite.
Bornite, Copper Iron Sulfide
No, perhaps you are thinking of bornite http://www.webmineral.com/data/Bornite.shtml
There are large amounts in the United States and Canada, Cornwall in the UK has specimens, Dzhezkazgan, Kazakhstan and Shaba, Zaire and Mexico