IMA mineral species
Tounkite
(Na,Ca,K)₈(Al₆Si₆O₂₄)(SO₄)₂Cl·0.5H₂O
Tectosilicate mineral.
Properties
| Chemical formula | (Na,Ca,K)₈(Al₆Si₆O₂₄)(SO₄)₂Cl·0.5H₂O |
|---|---|
| Elements | Na, Ca, K, Al, Si, O, S, Cl, H |
| Crystal system | Hexagonal |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Tou |
| Nickel–Strunz class | 9.FB.05 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): minerals of Slyudyanka, Russia
Learn more
- Tounkite on Mindat.org
- Wikidata item Q3996056 (source of this page's data – you can correct it there)
IMA mineral species
Hexagonal