Irregular crystals of bornite with a nice bronze patina, in calcite. A rich specimen
AN_309
1 Item
Data sheet
- Locality
- Dzhezkazgan, Kazakhstan
- Size category
- Small miniature
- Size (cm)
- 3 x 3 x 2.5
- Weight
- 38 g
- Formula
- Cu5FeS4
- Properties
- Submetallic; slightly tarnished