Facts
- Chemical formula
- Cu₅Ge₀.₅S₄
- Crystal system
- Cubic
- Density
- 5.24 g/cm³
- Number of elements
- 3
- IMA status
- Approved
- Type locality
- Tsumeb Mine
- Named after
- Lauriston D. Calvert
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q17333759