Info: Crystals of chalcopyrite are usualy found in tetragonal form, pseudotetraedric crystals are very rare. The mineral is usualy found as whole masses of yellow colour with light green shadows. Common chalcopyrite have metal shine. Typical for this mineral is founding of twin crystals.
Found: The most beautifull crystals up to 2 cm. were found in Savoj (France). Industrial deposits were found in USA, Canada, Chille and some other african states.
Used for: One of the most important ores for extraction of pure copper. From chalcopyrite the world industry produces up to 80% of copper.
| Crystal structure |
| Cubical |
| Hardness |
| 3,5 - 4 |
| Colour |
| Yellow |
| Shine |
| Metalic |
