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Wollastonite for Ceramics

Wollastonite is a mineral that is commonly found in metamorphic rocks. It is composed of calcium, silicon, and oxygen, and it has many unique properties that make it useful in a variety of applications.
Density :2.75-3.10 g/cm3
Melting poit :1480 ℃
Mohs hardness :4.5~5.5
Thermal expansion coefficient :6.5 x 10 /-6 ℃-1

Product information:


wollastonite powder for ceramics industry

HS code



325 mesh ≤ 5% residue on sieve


1 ton


Free samples are available



Technical data:



49 - 54 %


42 - 45 %


≤ 0.3 %


≤ 0.3 %


0.5 - 1.6 %


1 - 3 %


≤ 1 %

What is the Advantage of wollastonite in Ceramics?

Wollastonite is a versatile mineral that has a wide range of applications in various industries, including ceramics. The use of wollastonite in ceramics has numerous advantages that make it a popular additive in the production of ceramic products. In this article, we will discuss the advantages of using wollastonite in ceramics.

1. Improved Opacity and Whiteness

Wollastonite is a naturally white mineral that has a high brightness index. When added to ceramic formulations, wollastonite can improve the opacity and whiteness of the end product. This helps to achieve a consistent and uniform color, making ceramic products more visually appealing.

2. Enhanced Strength and Durability

Ceramic products that contain wollastonite exhibit improved strength and durability. Wollastonite is a hard and tough mineral that can resist cracking, chipping, and other forms of damage. When used in ceramics, wollastonite can help to improve the physical properties of the material, making it stronger and more resilient.

3. Reduced Shrinkage and Deformation

Ceramic products often shrink or deform during firing. However, when wollastonite is added to the ceramic formulation, it can help to reduce shrinkage and deformation. This is because wollastonite has a low thermal expansion coefficient, which means that it does not expand or contract significantly when exposed to heat.

4. Improved Thermal Shock Resistance

Ceramic products that contain wollastonite also exhibit improved thermal shock resistance. Thermal shock occurs when a material is exposed to rapid temperature changes, which can cause it to crack or break. Wollastonite has a high thermal conductivity and can act as a thermal shock absorber, helping to prevent damage to the ceramic product.

5. Cost-Effective

Wollastonite is a cost-effective additive for ceramics, as it is readily available and easy to process. The use of wollastonite can help to reduce overall production costs and increase profitability.

Application in Ceramics industry:

Wollastonite is a natural mineral that is widely used in the ceramics industry. It has a unique chemical composition that gives it excellent physical properties, making it an ideal material for use in the production of ceramic products.

One of the main applications of wollastonite in ceramics is as a filler material. It is commonly added to ceramic glazes and coatings, helping to improve their mechanical properties and enhance their overall performance. Wollastonite is also used as a reinforcing material in ceramic bodies, providing them with greater strength and durability.

Another important application of wollastonite in ceramics is as a fluxing agent. It lowers the melting point of ceramic materials and helps to ensure more consistent firing temperatures, improving the quality and reliability of finished ceramic products. Additionally, wollastonite can be used as a whitening agent in ceramic glazes, improving the brightness and whiteness of the final product.

Other application:

application of wollastonite


Normally, we choose to pack the wollastonite in ton bags, if customters has other requirements, we can also meet.

packing of wollastonite


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