Facts
- Chemical formula
- (Ca,Y)₃Al(HPO₄,CO₃)(CO₃)(OH)₆ * 12H₂O
- Crystal system
- Hexagonal
- Number of elements
- 7
- IMA status
- Approved
- Type locality
- Poudrette quarry, Igaliku
- Named after
- Harry I. Micheelsen
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3856368