Facts
- Chemical formula
- Fe²⁺Fe³⁺₅(PO₄)₄(OH)₅(H₂O)₄·2H₂O
- Crystal system
- Monoclinic
- Elements in formula
- Iron, Phosphorus, Oxygen, Hydrogen
- Number of elements
- 4
- IMA status
- Approved
- Type locality
- Gravel Hill Mine
- Named after
- iron(II)
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q109322311