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- The famous Chinese blue and white porcelain underwent its major early development in the 14th century. A blue pigment from cobalt was painted directly on the dried clay body, which was then covered with a glaze and the piece was fired at a temperature between 1280� to 1300�C, causing the glaze to become transparent. The blue decoration under�neath this glaze is therefore referred to as underglaze blue. The colour tone of the blue depends on the cobalt itself, and on conditions during firing. If the exact temperature is not attained at each firing, pieces made at the same time and with the same materials can differ in colour. Finer quality wares were first fired, then painted and glazed, and fired again. The majority of the blue and white wares were fired only once, after being painted and glazed.
i early white porcelain
of Samarra type
Tang Dynasty, 9th century
From the Rev. Dr. M. Menzies Collection,
lent by his son, Arthur R. Menzies
i Exemple des premieres porcelaines blanches de type Samarra Dynastie Tang, IXe siede
ii Jar
earthenware with splashed blue cobalt glaze Tang Dynasty, 8th century ht. 18.8 cm Gift of Syd Hoare, Vancouver Art Gallery of Greater Victoria 66.19
ii Jarre
de terre cuite avec eclaboussures de bleu de cobalt sous couverte Dynastie Tang, VIII0 siede
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