IMA mineral species
Cummingtonite
☐Mg₂Mg₅Si₈O₂₂(OH)₂
Mg-Fe-Mn-amphibole, double chain inosilicate mineral.
Properties
| Chemical formula | ☐Mg₂Mg₅Si₈O₂₂(OH)₂ |
|---|---|
| Elements | Mg, Si, O, H |
| Crystal system | Monoclinic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| Cleavage | {110} |
| IMA symbol | Cum |
| Nickel–Strunz class | 9.DE.05 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Learn more
- Cummingtonite on Mindat.org
- Wikipedia article
- Wikidata item Q418873 (source of this page's data – you can correct it there)
IMA mineral species
Monoclinic
GreenBrownGrayWhite & Clear