Evaluation of Selected Kaolin Clays as a Raw Material for
kaolin, fireclays, ball clays) for fine ceramics, porcelain, and electrical insulators are imported [4, 21]. white cement. Kaolin clay for white cement must contain about 65-80% of SiO2, not more than 1.0% of Fe2O3, less than 0.8% of TiO2 and only traces of MnO [37]. Usually, suitable kaolin contains 70-