Properties
| Chemical formula | MgSO₄·5H₂O |
|---|---|
| Elements | Mg, S, O, H |
| Crystal system | Triclinic |
| Mohs hardness | 2.5 |
| Density | 1.76 g/cm³ |
| Streak | — |
| Color | — |
| IMA symbol | Phy |
| Nickel–Strunz class | 7.CB.20 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Care & Handling
- 🪶 Soft, Scratches Easily Mohs 2.5: softer than a steel knife, so it scratches easily. Store it apart from harder stones.
Learn more
- Pentahydrite on Mindat.org
- Wikidata item Q2069329 (source of this page's data – you can correct it there)
IMA mineral species
2–3
Triclinic
Soft, Scratches Easily