Facts
- Country
- United States
- Minerals
- 1
- First described here
- Clarkeite
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q7163076
Minerals first described here · 1
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Clarkeite | (Na,Ca,Pb)(UO₂)O(OH) * ₀-₁H₂O | Trigonal | — | — |