As used by the ceramicist, a claybody, is a combination of various types of clay, minerals, and other materials. One material commonly added to the claybody is grog, which eases handling and increases durability. The recipe or formula is determined by the intended use of the final product to be produced. This is one of the reasons a combination of clays is used to create a claybody suitable to the ceramicists needs. Preparation of the claybody will arrange the clay particles alongside each other, making the clay more workable and durable. There are numerous types of claybodies used in ceramics today. The most popular of these include earthenware, stoneware, bone china, and porcelain. When purchasing a piece of ceramics, it is important to choose pieces made with a claybody appropriate for the piece's intended use. See also wedging, clay, grog.