IMA mineral species
Arfvedsonite
NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂
Na-amphibole, double chain inosilicate mineral.
Properties
| Chemical formula | NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂ |
|---|---|
| Elements | Na, Fe, Si, O, H |
| Crystal system | Monoclinic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | black |
| IMA symbol | Arf |
| Nickel–Strunz class | 9.DE.25 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Kangerluarsuk fjord, Ilímaussaq, Greenland
Learn more
- Arfvedsonite on Mindat.org
- Wikipedia article
- Wikidata item Q2008960 (source of this page's data – you can correct it there)
IMA mineral species
Monoclinic
GreenBlack