Facts
- Chemical formula
- Mn²⁺Mn²⁺Mg₂Fe³⁺₂(PO₄)₄(OH)₂(H₂O)₈
- Crystal system
- Monoclinic
- Number of elements
- 6
- IMA status
- Approved
- Type locality
- Sapucaia do Norte
- Named after
- jahnsite
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q30322533