IMA mineral species
Niigataite
CaSrAl₃[Si₂O₇][SiO₄]O(OH)
Epidote supergroup, sorosilicate mineral.
Properties
| Chemical formula | CaSrAl₃[Si₂O₇][SiO₄]O(OH) |
|---|---|
| Elements | Ca, Sr, Al, Si, O, H |
| Crystal system | Monoclinic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Nii |
| Nickel–Strunz class | 9.BG.05 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Ohmi, Itoigawa City, Japan
Learn more
- Niigataite on Mindat.org
- Wikidata item Q3680804 (source of this page's data – you can correct it there)
IMA mineral species
Monoclinic