Facts
- Chemical formula
- Cu₃(CO₃)₂(OH)₂
- Crystal system
- Monoclinic
- Mohs hardness
- 3.8
- Density
- 3.75 g/cm³
- Number of elements
- 4
- IMA status
- Grandfathered
- Type locality
- Chessy
- Named after
- blue
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q108212