IMA mineral species
Proto-anthophyllite
☐Mg₂Mg₅Si₈O₂₂(OH)₂
Mg-Fe-Mn-amphibole, double chain inosilicate mineral.
Properties
🔷 Orthorhombic✏️ streak white
| Chemical formula | ☐Mg₂Mg₅Si₈O₂₂(OH)₂ |
|---|---|
| Elements | Mg, Si, O, H |
| Crystal system | Orthorhombic |
| Mohs hardness | — |
| Density | — |
| Streak | white |
| Color | — |
| Cleavage | {110} |
| IMA symbol | Path |
| Nickel–Strunz class | 9.DD.05 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Takase mine, Japan
- Type locality
- Notable source / deposit
- Country of origin
Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.
Learn more
- Proto-anthophyllite on Mindat.org
- Wikidata item Q3924268 (source of this page's data – you can correct it there)
IMA mineral species
Orthorhombic