Information about Agateware
Agateware (also known by the Japanese term neriage 練り上げ) is pottery decorated with a combination of contrasting colored clays.
The name agateware is derived from the agate stone, which when sliced shows multicolored layers. This pottery technique allows for both precise and thoughtout patterns, and free random effects.
The name agateware is derived from the agate stone, which when sliced shows multicolored layers. This pottery technique allows for both precise and thoughtout patterns, and free random effects.
Technique:
In order to avoid cracking and breaking which come along with mixing a variety of different kinds of clay, potters generally use one white or very light clay as a base. They then add colors in the form of stains or oxides. Colorant is added to the clay when it is in powder form in order to avoid blistering. 1-10% of colorant is generally applied, however it is up to the individual taste of the potter. The drying process is the most crucial part of this technique and should take over a week. This form of pottery can look great left unglazed, or glazed however pale colors will be completely covered by glaze if it isn't completely transparent.Process
One way materials: this process requires the use of two or more differently colored clays. Body stains can be used to obtain almost any color desired.- combine two or more different colored clays by kneading and wedging.
- slice through to determine the amount of blending desired (generally agate patterning consists of a smaller amount of the stronger color).
- throwing/shape forming (you will not be able to see the agate effect)
- leather-hard stage (you will start to clearly see the agate effect at this point)
Further reading
- Cosentino, Peter. The Encyclopedia Of Pottery Techniques. Philadelphia: Running P, 1990. 11-13.
External links
- Definition of agateware
- Agateware from the Encyclopedia Britannica
- Sample Picture of Agateware Pottery
Pottery is the ceramic ware made by potters. In everyday usage the term is taken to encompass a wide range of ceramics, including earthenware, stoneware, and porcelain. The places where such wares are made are called potteries.
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Agate is a type of quartz (silica), chiefly chalcedony, characterised by its fineness of grain and brightness of color. Although agates may be found in various kinds of rock, they are classically associated with volcanic rocks but can be common in certain metamorphic rocks.
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Kneading is a process in the making of bread, used to mix together the ingredients and add strength to the bread. Its importance lies in the mixing of flour with water. When these two ingredients are combined and kneaded, the gliadin and glutenin in the flour expand and form
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