Soapstone
Soapstone is a rock with the chemical formula Mg3Si4O10(OH)2·4H2O. It has a Mohs hardness of 1-2 (Mohs scale) and waxy to soapy luster.
Soapstone properties
| Type | Rock |
|---|---|
| Chemical formula | Mg3Si4O10(OH)2·4H2O |
| Mohs hardness | 1-2 (Mohs scale) |
| Luster | Waxy to soapy |
| Typical colors | Gray, green, brown, or blue |
| Formation | Metamorphic rocks formed from talc, often found in conjunction with serpentinite |
| Rarity | 3 / 10 |
Mohs hardness 1–2 — very soft
1 · Talc5 · Apatite10 · Diamond
Mineralyst
Wondering what you found?
Point your camera at any rock and Mineralyst identifies it in seconds — with guided follow-up questions for a confident answer.
- Build a collection
- Keep a wish list
- 5 photos per find
- Share with friends
