Bowl with Dark-reddish-purple Glaze, Yaozhou Ware

Yaozhou kiln is located in Huangbu, Tongchuan, Shaanxi province. Dark-reddish-purple glazed porcelain ware is a new product of Yaozhou kiln in the mid Song dynasty. Imitating the lacquer wares of the Song dynasty, dark-reddish-purple glazed porcelain wares were produced in large numbers, second to the quantity of celadon wares. The dark-reddish-purple glaze contains iron as the colorant, and only presents the color at high temperatures. Ferric oxide accounts for as much as 5 percent in the glaze material.