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The Probert Encyclopaedia of Rocks & Minerals

BORNITE

Picture of Bornite

Bornite, named after the mineralogist Von Born, is a valuable ore of copper, containing copper, iron, and sulphur. Bornite has the formulae Cu5FeS4 and a relative hardness of 3. It is a widely occurring mineral found in basic rocks and metamorphic deposits.
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