Earthenware's a common ceramic material, which's used extensively for pottery tableware and decorative objects. Although body formulations vary between countries, and even between individual makers, a generic composition's 25% ball clay, 28% kaolin, 32% quartz, and 15% feldspar. Earthenware's one of the oldest materials used in pottery. While red earthenware made from red clays's very familiar and recognizable, white and buff colored earthenware clays are also commercially available and commonl… (More on Earthenware)