Wollastonite
Wollastonite is a mineral with the chemical formula CaSiO3. It has a Mohs hardness of 4.5 - 5 and vitreous to pearly luster.
Wollastonite properties
| Type | Mineral |
|---|---|
| Chemical formula | CaSiO3 |
| Mohs hardness | 4.5 - 5 |
| Luster | Vitreous to pearly |
| Typical colors | White, gray, green, and occasionally pink |
| Formation | Metamorphic rocks, primarily in calcium-rich environments, often formed from the alteration of limestone |
| Rarity | 4 / 10 |
Mohs hardness 4.5–5 — medium
1 · Talc5 · Apatite10 · Diamond
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