Abstract: The properties of the frit glaze affected by ceramic raw materials such as calcite，kaolin，quartz has been demonstrated by optimal experiments using Chengchao iron ore tailing as main raw material.Optimum dosages of calcite，kaolin and quartz are determined to obtain pure black fritted glaze.Influences on the quality of glaze surface and the colouration mechanism of fritted glaze also have been analyzed.Results shows that when the dosage of calcite，kaolin，quartz is 7.5%，4%，6% respectively of all fritted glaze materials，the glaze has the best comprehensive performance for absorption rate of 97%，glossiness of 78%，Moh′s hardness of 6.1，which fits the requirements of GB/T 5003-1999 standard.Calcite plays critical roles in reducing the high temperature viscosity，improving smoothness and glossiness of the glaze surface，decreasing the glaze tension to increase the adhesion between green body and glaze surface.Caolin can increase the suspension property of glaze slurry and the wettability between green body and glaze surface.Quartz can increase the strength and hardness of glaze and help to develop color evenly.The black color appeared in fritted black glaze is caused by the generation of tiny dark crystals like magnetite and hedenbergite，which are distributed evenly in glaze.Utilization of Chengchao iron ore tailings as secondary resources to prepare pure black fritted glaze can produce considerable economic benefits.

Key words: Chengchao iron ore tailings, Fritted glaze, Black glaze, Absorption rate, Glossiness, Moh′s hardness, Coloration mechanism