IMA mineral species
Janhaugite
(Na,Ca)₃(Mn²⁺,Fe²⁺)₃(Ti,Zr,Nb)₂(Si₂O₇)₂O₂(OH,F)₂
Sorosilicate mineral.
Properties
| Chemical formula | (Na,Ca)₃(Mn²⁺,Fe²⁺)₃(Ti,Zr,Nb)₂(Si₂O₇)₂O₂(OH,F)₂ |
|---|---|
| Elements | Na, Ca, Mn, Fe, Ti, Zr, Nb, Si, O, H, F |
| Crystal system | Monoclinic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Jhg |
| Nickel–Strunz class | 9.BE.17 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Gjerdingselva outcrops, Norway
Learn more
- Janhaugite on Mindat.org
- Wikidata item Q3807038 (source of this page's data – you can correct it there)
IMA mineral species
Monoclinic