IMA mineral species
Usturite
Ca₃(SbZr)(FeO₄)₃
Garnet supergroup, oxide mineral.
Properties
⛏ Mohs hardness7
💅🪙🍶🔪💎
Harder than quartz: scratches glass and steel.
| Chemical formula | Ca₃(SbZr)(FeO₄)₃ |
|---|---|
| Elements | Ca, Sb, Zr, Fe, O |
| Crystal system | Cubic |
| Mohs hardness | 7 |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Ust |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Mount Lakargi, Russia
Learn more
- Usturite on Mindat.org
- Wikidata item Q19862133 (source of this page's data – you can correct it there)
IMA mineral species
7–8
Cubic