*Physical Properties: Retained Min Max Uom >0.850 mm - 1.00 % >0.600 mm - 10.00 % >0.150 mm 82.00 - % >0.075 mm - 7.00 % <0.075 mm - 1.50 % *Chemical composition: Min Max Uom Method SiO2 99.30 - % XRF Fe2O3 - 0.021 % XRF Al2O3 - 0.33 % XRF TiO2 - 0.045 % XRF