IMA mineral species
Thermessaite
K₂AlF₃(SO₄)
Halide mineral.
Properties
⚖ Density2.798 g/cm³
Average
| Chemical formula | K₂AlF₃(SO₄) |
|---|---|
| Elements | K, Al, F, S, O |
| Crystal system | Orthorhombic |
| Mohs hardness | — |
| Density | 2.798 g/cm³ |
| Streak | — |
| Color | — |
| IMA symbol | Tms |
| Nickel–Strunz class | 3.CG.25 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): La Fossa crater, Italy
- Type locality
- Notable source / deposit
- Country of origin
Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.
Learn more
- Thermessaite on Mindat.org
- Wikidata item Q19862002 (source of this page's data – you can correct it there)
IMA mineral species
Orthorhombic