ZE XI MINERAL CO., LTD
Wollastonite Powder
Wollastonite Powder is a naturally occurring calcium silicate mineral with acicular crystal structure. ZE XI MINERAL CO., LTD supplies high-quality wollastonite powder with controlled particle size, excellent aspect ratio and stable chemical composition for industrial applications.
Chemical Composition (%)
| Component | Grade A | Grade B | Grade C |
|---|---|---|---|
| SiO₂ | 48–53 | 47–52 | 47–54 |
| CaO | 43–45 | 38–42 | 35–40 |
| Al₂O₃ | 0.15–0.30 | 0.15–0.30 | 0.15–0.30 |
| Fe₂O₃ | 0.20–0.30 | 0.30–0.50 | 0.50–0.60 |
| TiO₂ (Max) | 0.02 | 0.02 | 0.02 |
| MgO | 0.5–1.2 | 0.5–1.5 | 0.5–2.0 |
| L.O.I (1050°C) | 1–3 | 4–8 | 6–18 |
Physical Properties
| Property | Value |
|---|---|
| Particle Size | 80 – 6000 mesh |
| Aspect Ratio (L:D) | 3:1 – 25:1 |
| Whiteness | 75 – 92% |
| Density | 2.95 g/cm³ |
| Melting Point | 1450°C |
| Hardness (Mohs) | 4.5 – 5.0 |
Packaging
Standard packaging in bags or jumbo bags according to customer requirements. Custom particle sizes and packaging solutions are available upon request.