Facts
- Chemical formula
- K₃Na₂Ca₁₀Al₁₅(PO₄)₂₁(OH)₇·26H₂O
- Crystal system
- Monoclinic
- Mohs hardness
- 3.0
- Number of elements
- 7
- IMA status
- Grandfathered
- Type locality
- Clay canyon, Fairfield
- Named after
- George L. English
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3725373