Properties
| Chemical formula | CaAl₂Si₂O₈ |
|---|---|
| Elements | Ca, Al, Si, O |
| Crystal system | Triclinic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | An |
| Nickel–Strunz class | 9.FA.35 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Mount Somma, Italy
- 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.
Varieties & related stones
Learn more
- Anorthite on Mindat.org
- Wikipedia article
- Wikidata item Q244994 (source of this page's data – you can correct it there)
IMA mineral species
Triclinic
RedGrayWhite & Clear