Facts
- Chemical formula
- Na₈Mn₂Si₁₀O₂₅(OH,Cl)₂·12H₂O
- Crystal system
- Orthorhombic
- Number of elements
- 6
- IMA status
- Approved
- Type locality
- Demix-Varennes quarry, Saint-Amable sill
- Named after
- Varennes
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q4008703