Facts
- Country
- United States
- Minerals
- 4
- Species citing it (Wikidata)
- 3
- First described here
- Bementite, Franklinite, Nelenite and others
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q23894235
Minerals first described here · 4
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Bementite | Mn₇Si₆O₁₅(OH)₈ | Monoclinic | 6.0 | — |
| Franklinite | ZnFe³⁺₂O₄ | Cubic | — | — |
| Nelenite | (Mn,Fe)₁₆(Si₁₂O₃₀)(OH)₁₄[As³⁺₃O₆(OH)₃] | — | — | — |
| Sussexite | Mn²⁺BO₂(OH) | Orthorhombic | — | — |