Bornite
Bornite
Bukov, Žďár nad Sázavou Co., Moravia, Czech Republic
Item-No.: MINS2435
Price: 12.00 EUR
Bornite
Huber quarry, Horní Slavkov, Czech Republic
Item-No.: MINS2380
Price: 28.00 EUR
| 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 |