porcelain glaze
6.PIXE STUDY ON THE SOURCE OF RAW MATERIALS OF RU AND JUN GUAN PORCELAIN WITH THREE REPRESENTATIVE GLAZE COLORS
10.The results showed that the ancient pottery and porcelain at Plum Dune Kiln site were chiefly black hard pottery with clay glaze ,stamped hard pottery and protoporcelain which had coexisted in the same time and the Pearl River basin might be the same important source of Chinese pottery and porcelain as the Huanghe River basin and especially Yangtze River basin.

