Facts
- Country
- Japan
- Minerals
- 1
- First described here
- Proto-anthophyllite
Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q28059736
Minerals first described here · 1
| Mineral | Chemical formula | Crystal system | Mohs hardness | Density |
|---|---|---|---|---|
| Proto-anthophyllite | ☐Mg₂Mg₅Si₈O₂₂(OH)₂ | Orthorhombic | — | — |