Facts
- Country
- United States
- Minerals
- 1
- First described here
- Vermiculite
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q425586
Minerals first described here · 1
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Vermiculite | Mg₀.₇(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄ * 8H₂O | Monoclinic | 1.3 | 2.55 g/cm³ |