Bill Bagley Minerals

Bill Bagley Rocks and Minerals

Minerals / Bornite.

Bornite often has an iridescent surface, and for this reason is popularly known as "Peacock ore" It is a sulphide mineral, composed of copper and iron with the formula  Cu5FeS4   It is an important copper ore, widely occurring in porphyry copper deposits. There can be a wide variance in the amounts of copper and iron, and also a wide variance in coloration. This particular specimen, collected from Broken Hill in South Australia, is probably below average in brilliant coloration, but nevertheless is an interesting specimen.

 

Bornite. Bill Bagley Rocks and Minerals



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