Andalusite
Andalusite is a mineral commonly found in metamorphic rocks. It is a high-purity mineral composed of prismatic, anhydrous crystals.
With up to 60% alumina content, andalusite transforms into mullite at low temperatures between 1,200°C and 1,550°C. This refractory mineral offers properties such as high resistance to degradation at extreme temperatures and harsh conditions, making it very durable.
It is used in the production of high-quality refractory products that require a high alumina content.
In the lost wax casting market, it is also used for the production of sand molds and cores for casting.