Facts
- Chemical formula
- CaFe³⁺₄(PO₄)₂(OH)₈·4-5H₂O (?)
- Crystal system
- Amorphous
- Elements in formula
- Calcium, Iron, Phosphorus, Oxygen, Hydrogen
- Number of elements
- 5
- IMA status
- Questionable
- Named after
- Jean-Charles-Philippe-Joseph Delvaux de Fenffe
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q1069446