Facts
- Chemical formula
- Ca₄MgAl₄(PO₄)₆(OH)₄ * 12H₂O
- Crystal system
- Monoclinic
- Number of elements
- 6
- IMA status
- Grandfathered
- Type locality
- Clay canyon, Fairfield
- Named after
- Arthur Montgomery
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3862429