Facts
- Chemical formula
- Fe²⁺₃Si₄O₁₀(OH)₂
- Crystal system
- Triclinic
- Number of elements
- 4
- IMA status
- Grandfathered
- Type locality
- Cuyuna Range, Mesabi Range
- Named after
- Minnesota
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3858563