Facts
- Chemical formula
- KCdCu₅(AsO₄)₄[As(OH)₂O₂]·2H₂O
- Crystal system
- Monoclinic
- Mohs hardness
- 3.0
- Density
- 4.01 g/cm³
- Number of elements
- 6
- IMA status
- Approved
- Type locality
- Tsumeb Mine
- Named after
- Andrew C. Roberts
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3616576