Facts
- Country
- United Kingdom
- Minerals
- 1
- First described here
- Birnessite
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q62603581
Minerals · 1
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Birnessite | (Na,Ca,K)₀.₆(Mn⁴⁺,Mn³⁺)₂O₄·(H₂O)₁.₅ | — | 1.5 | 1.50 g/cm³ |
Minerals first described here · 1
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Birnessite | (Na,Ca,K)₀.₆(Mn⁴⁺,Mn³⁺)₂O₄·(H₂O)₁.₅ | — | 1.5 | 1.50 g/cm³ |