IMA mineral species Healing crystal
Gypsum
CaSO₄·2H₂O
Mineral, calcium sulfate with bounded water.
Properties
| Chemical formula | CaSO₄·2H₂O |
|---|---|
| Elements | Ca, S, O, H |
| Crystal system | Monoclinic |
| Mohs hardness | 2 |
| Density | 2.31 – 2.33 g/cm³ |
| Streak | white |
| Color | — |
| IMA symbol | Gp |
| Nickel–Strunz class | 7.CD.40 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Varieties & related stones
Learn more
- Gypsum on Mindat.org
- Wikipedia article
- Wikidata item Q82658 (source of this page's data – you can correct it there)
IMA mineral species
2–3
Monoclinic
RedYellowBluePinkBrownGrayWhite & Clear
Crown
Healing crystal



