IMA mineral species
Amstallite
CaAl[(Al,Si)₄O₈(OH)₂](OH)₂·(H₂O,Cl)
Mineral.
Properties
⛏ Mohs hardness4
💅🪙🍶🔪💎
A steel knife scratches it, it won't scratch glass.
| Chemical formula | CaAl[(Al,Si)₄O₈(OH)₂](OH)₂·(H₂O,Cl) |
|---|---|
| Elements | Ca, Al, Si, O, H, Cl |
| Crystal system | Monoclinic |
| Mohs hardness | 4 |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Ams |
| Nickel–Strunz class | 9.DP.25 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Learn more
- Amstallite on Mindat.org
- Wikidata item Q478080 (source of this page's data – you can correct it there)
IMA mineral species
4–5
Monoclinic