A plastic secondary clay, stands high temperature and fires off-white.
A fine-grained, plastic, white firing clay used principally for bonding in ceramic ware.
A white or near-white firing clay that is highly plastic. Used as the clay ingredient in glazes and added to clay bodies to increase their plasticity, most often in porcelain.
A fine grained sedimentary clay. Ball clay is a major component in many clay formulas, usually added to increase plasticity during the forming process.
An extremely fine-grained, plastic, sedimentary clay. Although ball clay contains considerable organic matter, it fires white or near white in color. It is usually added to porcelain and whiteware bodies to increase plasticity. Often included in glazes to assist suspension and provide adhesion before firing.
A sedimentary clay that will withstand high firing temperatures. Plastic in quality.
A very fine particle sedimentary clay. It can withstand high tempertures. Therefore, it is frequently used as a stablizing agent in clay bodies.
A very fine-grained plastic secondary clay that fires to white or near white.
A secondary clay, commonly characterized by the presence of organic matter, high plasticity, high dry strength, long verification range, and a light color when fired.
Ball clay is a fine-grained and plastic of secondary deposition. Accessory minerals and contaminants are common, such as lignite. The name "ball clay" is believed to have originated because when the clay was mined by hand, it was cut into 15- to 17-kilogram cubes, or "balls," for transport.