Shale
Shale is a rock. It has a Mohs hardness of 2-3 on Mohs scale and dull to earthy luster.
Shale properties
| Type | Rock |
|---|---|
| Mohs hardness | 2-3 on Mohs scale |
| Luster | Dull to earthy |
| Typical colors | Gray, brown, black, green, red |
| Formation | Formed from the compaction of clay and silt-sized particles |
| Rarity | 3 / 10 |
Mohs hardness 2–3 — 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
