Facts
- Country
- Russia
- Minerals
- 1
- First described here
- Ferri-winchite
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q2670029
Minerals first described here · 1
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Ferri-winchite | ☐(NaCa)(Mg₄Fe³⁺)Si₈O₂₂(OH)₂ | Monoclinic | 5.5 | — |
Minerals · 1
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Ilmenite | Fe²⁺Ti⁴⁺O₃ | Trigonal | 5.5 | 4.72 g/cm³ |