Ash glaze
- Ash glaze
Ash glazes are types of high temperature glazes for
stoneware pottery that include the ashes of trees, shrubs, plants or grasses within the glaze recipe.Plant ashes are a complex mixture that reflect the nutritional requirements, and therefore composition, of the living plant. High in calcium and also incorporating other alkaline material, ash behaves as a flux, encouraging the glass forming oxide silica to melt at a temperature within the scope of a pottery kiln. Ash glazes often have a characteristic mottled or streaky texture, depending on the amount of ash incorporated.
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