Research of making skarn gold mine tailings into art pottery body material

By modern technology, phase composition, chemical constitution and grain composition of a skarn gold mine tailing from Hubei Province were systematically tested. Remedying the defect of tailings used pottery clay according to its composition. Mixing water and raw material for green bodies and then firing the green bodies into the pottery bodies was designed under oxidizing atmosphere through 15 hours with the firing temperature of 980~1 000 ℃. The results showed that some new kinds of mineral facies, such as calcium feldspar, appear in pottery bodies and the pottery bodies meet the performance requirements of art pottery bodies because of their close-grained internal structure, 7.46% water absorption and 5.5~6 Mohs hardness. It can be proved that skarn gold mine tailings are feasible for art pottery body materials making. ©, 2014, Dongbei Daxue Xuebao/Journal of Northeastern University. All right reserved.