9. Black-glazed stoneware ‘oil-spot’ bowl
Northern Song - Jin dynasty, 12th - 13th century
Northern black ware
Diameter: 19.2cm
The characteristic silvery markings of the ‘oil-spot’ glaze were produced when iron compounds separated from the iron-saturated glaze during firing and crystallized on the surface during the cooling process. The additional circular splashes on the interior of this bowl were created by the application of an iron-rich compound, probably with a brush, before firing.
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View Chinese ceramics, lacquer and gold from the 12th to the 14th century