Bornite - angew. Mineralogie

Bornite
II - Sulfides

`Name`		`Bornite`
`Chemistry`		`Cu₅FeS₄`
`Hardness`		`3`
`Lustre`		`metallic`
`Colour`		`brown to black, purplish-bluish tarnish, bronze colour on freshly broken surfaces`
`Streak`		`greyish black`
`Density [g/cm³]`		`4.9 - 5.3`
`Crystal habit`		`isometric`
`Cleavage, Fracture`		`fracture conchoidal`
`other characteristics and occurrences`		`massive, granular, often associated with other copper sulfides, disseminated in igneous intrusions and minerals in copper ore veins`

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