IMA mineral species
Hansesmarkite
Ca₂Mn₂Nb₆O₁₉·20H₂O
Polyoxometalate mineral (Lindqvist ion).
Properties
| Chemical formula | Ca₂Mn₂Nb₆O₁₉·20H₂O |
|---|---|
| Elements | Ca, Mn, Nb, O, H |
| Crystal system | Triclinic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Hmk |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Tuften quarry, Norway
Learn more
- Hansesmarkite on Mindat.org
- Wikidata item Q23894782 (source of this page's data – you can correct it there)
IMA mineral species
Triclinic