IMA mineral species
Olmiite
CaMn[SiO₃(OH)](OH)
Nesosilicate mineral.
Properties
| Chemical formula | CaMn[SiO₃(OH)](OH) |
|---|---|
| Elements | Ca, Mn, Si, O, H |
| Crystal system | Orthorhombic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Olm |
| Nickel–Strunz class | 9.AF.90 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Nchwaning mines, South Africa · Nchwaning mines, South Africa
- 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
- Olmiite on Mindat.org
- Wikipedia article
- Wikidata item Q19861102 (source of this page's data – you can correct it there)
IMA mineral species
Orthorhombic