Bornite
Bornite
Item-No.: MINS2435 Price: 12.00 EUR
Bukov, Žďár nad Sázavou Co., Moravia, Czech Republic
Synonyms: | Chalcomiklite, Erubescite, Lefverslag, Peacockore, Phillipsine, Poikilite, Purple Copper (Ore), Variegated Copper (Ore) |
Classification: | Sulfides |
Chemical formula: |
Cu5FeS4 |
Crystal system: | Orthorhombic |
Density (g/cm3): | 5.06 - 5.09 measured, 5.09 calculated |
Tenacity: | Brittle |
Cleavage: | Poor/indistinct, in traces on {111} |
Fracture: | Irregular/uneven |
Hardness (Mohs): | 3 |
Colour: | Copper-red to pinchbeck-brown, quickly tarnishing to an iridescent purplish surface |
Lustre: | Metallic |
Streak: | Grey-Black |
Transparency: | Opaque |
Type locality: | Jáchymov, Karlovy Vary District, Karlovy Vary Region, Czech Republic |
Application: | A major ore of copper |