Facts
- Country
- United States
- Minerals
- 1
- First described here
- Perhamite
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3449812
Minerals first described here · 1
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Perhamite | Ca₃Al₇.₇Si₃P₄O₂₃.₅(OH)₁₄.₁ · 8H₂O | Trigonal | — | — |