Facts
- Chemical formula
- Pb₇FeAl₃GeSi₁₂O₃₆(OH,H₂O)₆
- Crystal system
- Hexagonal
- Mohs hardness
- 2.0
- Number of elements
- 7
- IMA status
- Approved
- Type locality
- Tsumeb Mine
- Named after
- Mathew Rogers
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3851798