... , zirconia silicate etc. Application:Suitable for wet grinding of alumina, zirconia silicate, feldspar, quartz, kaolin clay, glaze, ... to low wear rate* Contamination-free to the color and composition of the grinded material * Technical support provided to optimize milling ... Details Real specific weight (g/cm3)3.62 ±0.02Chemical composition of Al2O3 (%)91 ±1Hardness (Mohs)9Crushing Strength (20mm)min. ...