Facts
- Chemical formula
- BaFe²⁺₂Fe³⁺(Si₂O₇)O(OH)
- Crystal system
- Monoclinic
- Mohs hardness
- 4.5
- Number of elements
- 5
- IMA status
- Approved
- Type locality
- Esquire No. 8 claim, Esquire No. 7 claim
- Named after
- iron(II)
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q19833636