Facts
- Chemical formula
- (Y,Yb)₄Al₂.₅-₁.₅(Si,Al)₁.₅-₂.₅(SiO₄)₄O(OH)₇
- Crystal system
- Monoclinic
- Number of elements
- 6
- IMA status
- Renamed
- Type locality
- Mount Ploskaya
- Named after
- Mount Vyuntspakhk
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q4016682