Bowl

12th century

Caption

Bowl, 12th century. Jun ware, stoneware with purplish blue glaze, 3 1/16 x 7 3/8 in. (7.8 x 18.7 cm). Brooklyn Museum, The Peggy N. and Roger G. Gerry Collection, 2004.28.40. Creative Commons-BY

Gallery

Not on view

Collection

Asian Art

Title

Bowl

Date

12th century

Dynasty

Song Dynasty

Period

Song Dynasty

Geography

Place made: China

Medium

Jun ware, stoneware with purplish blue glaze

Classification

Ceramic

Dimensions

3 1/16 x 7 3/8 in. (7.8 x 18.7 cm)

Credit Line

The Peggy N. and Roger G. Gerry Collection

Accession Number

2004.28.40

Rights

Creative Commons-BY

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Frequent Art Questions

  • Can you tell me about this?

    This bowl is an example of Jun ware, which was developed in northern China. It is characterized by it's stoneware body and opalescent blue-toned glaze.
    The blue tones were constructed using an optical illusion. Cobalt pigments weren't actually used to create the colors, like in other blue ceramics. Rather a combination of silica, alumina, and plant ash was fired to create a glaze made up of tiny glass spheres, which refract blue light in the same way as particles in the sky.
  • Hi! What kind of process is used to make the glaze look like this?

    Basically, it has to do with variations in heat and oxygen level in the kiln. The glaze itself is all one color. Let me get some more details for you!
    So, the glaze used in Jun ware relies on chemical reactions between silica, alumina, and plant ash that take place in the high temperatures of the kiln to produce the mostly blue-green color that you see.
    Even higher temperatures transform the glaze into the red-purple splotches which were considered desirable. Ceramic artists carefully engineered their kilns to produce varying temperatures to this end.
    Cool thanks!

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