Facts
- Chemical formula
- K₄Ca₂[AlSi₇O₁₇(O₂-xOHx)][(H₂O)₂-xOHx]Cl
- Crystal system
- Orthorhombic
- Number of elements
- 7
- IMA status
- Approved
- Type locality
- Tsentral'nyi mine
- Named after
- Mikhail P. Fiveg
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q19833649