Facts
- Chemical formula
- Na₄K₂Ca₂(SO₄)(Si₆Al₆O₂₄)Cl₂
- Crystal system
- Hexagonal
- Number of elements
- 8
- IMA status
- Grandfathered
- Type locality
- Mount Somma
- Named after
- Mount Somma
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3857029