Facts
- Chemical formula
- Na₈KSi₉O₁₈(OH)₉ * 19H₂O
- Crystal system
- Monoclinic
- Number of elements
- 5
- IMA status
- Approved
- Type locality
- Mount Rasvumchorr
- Named after
- cyclosilicates
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3853917