Black, slightly iridescent bornite crystals in calcite. A rich specimen, the largest cluster measuring 3 cm
AN_308
1 Item
Data sheet
- Locality
- Dzhezkazgan, Kazakhstan
- Size category
- Miniature
- Size (cm)
- 4 x 3 x 2.5
- Weight
- 42 g
- Formula
- Cu5FeS4
- Properties
- Black; dull; slightly tarnished