Calcined cristobalite powder is produced from carefully selected natural Donghai quartz ore through a special high-temperature calcination process at around 1500°C, resulting in a unique cristobalite raw material. It undergoes pollution-free grinding, magnetic separation, and classification, ensuring stable properties and a high cristobalite conversion rate. It contains over 99.8% silicon, with a tetragonal crystal system, a Mohs hardness of approximately 6.5, a density of 2.45, large specific surface area, high porosity, excellent weather resistance, anti-settling properties, and good thermal shock resistance.

Cristobalite powder is mainly used in: casting, enamel glazes, coatings, rubber and plastic fillers, abrasives, cables, etc.

The main characteristics of cristobalite powder include:
*Conversion rate over 90%
*Unique thermal expansion coefficient
*Whiteness around 96
*Unique refractive index
*Stable chemical properties, corrosion-resistant, acid and alkali resistant
*Good insulation properties

Cristobalite particle size: D50  3-30 microns (mesh size: 200-5000 mesh). Surface treatment of the powder can be customized according to customer requirements.