Zircon flour is a finely ground form of zircon sand, typically with particle sizes ranging from a few micrometers to tens of micrometers. This fine powder retains the desirable properties of zircon sand, including its high refractoriness and chemical inertness.

Zircon flour is essential for the manufacturing of advanced ceramics where it acts as a stabilizer, enhancing the mechanical strength and thermal resistance of ceramic materials. Additionally, this material is an essential component in the manufacturing of zirconium chemicals, utilized in paper coatings, paint driers, catalysts, and cosmetics like antiperspirants. Zircon flour is also used in investment casting processes for the precision casting of metal components.