Facts
- Chemical formula
- Sr₄Al₈(CO₃)₃(OH,F)₂₆ * 10-₁₁H₂O
- Crystal system
- Triclinic
- Number of elements
- 6
- IMA status
- Approved
- Type locality
- Francon quarry
- Named after
- Mount Royal
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3862539