Facts
- Chemical formula
- (NH₄)₃KNa₂Fe²⁺Fe³⁺(SO₄)₃Cl₅
- Crystal system
- Monoclinic
- Number of elements
- 8
- IMA status
- Approved
- Type locality
- La Fossa crater
- Named after
- Vulcano
- Colour
- brown
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q19862000