Stoneware

Pottery fired at a high temperature so that it is non-porous and extremely long lasting, it is the opposite of earthenware, which is porous, hard paste and fired at a low temperature. Examples are many 19th-century stone crocks and stoneware. Sources: Ralph Mayer, "A Dictionary of Art Terms and Techniques"; Kimberley Reynolds and Richard Seddon, "Illustrated Dictionary of Art Terms"