Facts
- Chemical formula
- MnMn₂Mn₂(AsO₄)₂(HAsO₄)₂ * 4H₂O
- Crystal system
- Monoclinic
- Number of elements
- 4
- IMA status
- Approved
- Type locality
- Sterling Hill, Ojuela mine, Gozaisho mine
- Named after
- Miguel Romero Sanchez
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q18577851