Wollastonite
CaSiO₃
Calcium silicate mineral supplied for ceramics, plastics, paints, and specialty industrial applications requiring low thermal expansion.
Overview
Wollastonite is a naturally occurring calcium metasilicate mineral with low moisture absorption, low thermal expansion, high brightness, and acicular crystal morphology. In ceramics it reduces fired shrinkage and acts as a flux. In plastics and coatings it functions as a reinforcing filler offering superior performance compared to conventional calcium carbonate.
Source Details
Source Name
Wollastonite Supply Network
Region / Country
Multi-Origin, India / China / Finland
Dispatch Ports
Mundra, Kandla, Chennai
Sourcing Note
Available in ceramic and industrial grades with varying aspect ratios and particle size distributions.
Quality Parameters
| Parameter | Typical Range / Content |
|---|---|
| CaO | ~44–47% |
| SiO₂ | ~50–52% |
| Fe₂O₃ | As per grade |
| Brightness | On request |
| Aspect Ratio | On request |
* Final chemistry, sizing, and commercial grade are supplied subject to confirmed assay, origin, and buyer application.
Applications
Ceramic Bodies & Tiles
Reduces fired shrinkage and thermal expansion in tile and porcelain formulations.
Plastics & Composites
Reinforcing mineral filler improving stiffness and surface quality in polymers.
Paints & Coatings
Functional extender in industrial coatings for improved weathering performance.
Industries Served
Technical Documentation
Access detailed technical specifications, safety data sheets (SDS), and certificate of analysis (COA) examples.
Commercial Details
Packaging Options
- 25 kg bags
- 50 kg bags
- 1 MT jumbo bags
Export Availability
Containerized export available
Contact Sales
Request Wollastonite Supply
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