Wollastonite is a mineral made of calcium, silicon, and oxygen, with the chemical formula CaSiO3. It’s used in many industrial applications, including construction, ceramics, and paint.

Uses :

• Filler in ceramic floor and wall tiles
• Filler in marine wallboard
• Filler in paint
• Filler in plastic
• Refractory liners in steel mills
• Partial replacement for short-fiber asbestos in brake linings
• Construction materials

Properties :

• Pure wollastonite is bright white
• Impurities can cause wollastonite to appear gray, cream, brown, pale green, or red
• It occurs as needle-like or bladed crystals
• It has a hardness of 4.5 to 5 on the Mohs scale