Facts
- Chemical formula
- Na(NaCa)Mg₅Si₈O₂₂(OH)₂
- Crystal system
- Monoclinic
- Number of elements
- 6
- IMA status
- Redefined
- Type locality
- Långban
- Named after
- Hieronymous Theodor Richter
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q418652