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Bright candy colors, lightness, low-fire, These are a few things that describe white earthenware clay. Cast items are most often made from this type of clay. When an earthenware piece is struck with an object it often makes a “clanky” ring, while stoneware and porcelains are more likely to make a bell-like chime. Earthenware clays normally rely on talc (magnesia) as an active flux (melter), and ball clay as a source of silica, alumina and plasticity. The end result is a clay mixture that fires bright white between cone 06 and cone 2. Above cone 2, many earthenware bodies will begin to melt and slump and liquefy above cone 6!
Guru Spotlight |
Patricia Walters-Fischer |