Wollastonite Powder

Detailed Introduction

Wollastonite is a calcium inosilicate mineral (CaSiO3) that may contain small amounts of iron, magnesium, and manganese substituting for calcium. It is usually white. It forms when impure limestone or dolomite is subjected to high temperature and pressure, which sometimes occurs in the presence of silica-bearing fluids as in skarns or in contact with metamorphic rocks. It is named after the English chemist and mineralogist William Hyde Wollaston (1766–1828).

Wollastonite Powder advantage.

Based on the versatility of the needle-like shape, low gloss, paint film strength and overall durability can be achieved

Moderate oil absorption, can provide more PVC

High dry brightness, can provide cleaner tones

Medium hardness, can prevent scratches and scrub resistance

Alkaline pH may become one of the most important properties of wollastonite, requiring less ammonia and improving rust and mildew resistance

Physical properties & Composition

Wollastonite occurs as bladed crystal masses, single crystals can show an acicular particle shape.

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