Anhydrite
Anhydrite is a mineral with the chemical formula CaSO4. It has a Mohs hardness of 3-3.5 and vitreous to pearly luster.
Anhydrite properties
| Type | Mineral |
|---|---|
| Chemical formula | CaSO4 |
| Mohs hardness | 3-3.5 |
| Luster | Vitreous to pearly |
| Typical colors | Colorless, white, gray, blue, green, or reddish |
| Formation | Forms from evaporation of saline water, often in sedimentary environments |
| Rarity | 5 / 10 |
Mohs hardness 3–3.5 — soft
1 · Talc5 · Apatite10 · Diamond
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