But the mineral phase of part of Yuan dynasty's overglaze color is mainly hematite, the decorative pattern of which is of deep red color.
但是部分元代样品色层在釉上,部分釉上彩色层物相是以赤铁矿为主,花纹呈铁红色。
Methods of making ceramic tableware are overglaze color, underglaze color and glazed. The harmful metals like cadmium and lead are mainly from the enamel paint.