White quartz: A hard core with a bright surface


White quartz is quartz which has slightly been calcined. A quartz core is coated by a shell of cristobalite. This gives the grains of white quartz the stability of quartz and the optical whiteness of cristobalite. The individual grains have a rough surface.

• round grain shape
• density 2.60 g/cm³
• brightness (Y-value > 60)
• robust against pressure
• chemically inert

Key applications
• emulsion plasters and silicate plasters
• road markings
• engineered stone

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