Facts
- Country
- United States
- Minerals
- 2
- Species citing it (Wikidata)
- 1
- First described here
- Groutite, Minnesotaite
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q5197115
Minerals first described here · 2
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Groutite | Mn³⁺O(OH) | — | — | 4.14 g/cm³ |
| Minnesotaite | Fe²⁺₃Si₄O₁₀(OH)₂ | Triclinic | — | — |