Info: Bornite is found usualy in the form of grains or masses of grey-red colour. Good developed cubical, rombododekaedrical and oktaedrical crystals are rare.
Found: Known deposits of bornite were found in Butte, Montana (USA), Tsumeb (Namibia), Tamaya (Chille) and Transwaal (South Africa).
Used for: Bornite is one of the most important copper ores and its used for copper.
| Crystal structure |
| Square, Cubical |
| Hardness |
| 3 |
| Colour |
| Red brown |
| Shine |
| Metalic |
