Facts
- Chemical formula
- Fe²⁺Al₆(PO₄)₄(OH)₈·4H₂O
- Crystal system
- Triclinic
- Elements in formula
- Iron, Aluminium, Phosphorus, Oxygen, Hydrogen
- Number of elements
- 5
- IMA status
- Approved
- Type locality
- Huanuni tin mine
- Named after
- Allen V. Heyl
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q1070576