Porcelain clay is a type of clay that is often used in pottery and ceramics. Although it is known by this name, there are a few other synonyms that it can go by. One of these is kaolin clay, which is a type of white clay that can be found in parts of Asia, Europe, and the United States. Another synonym for porcelain clay is china clay, which is also a white clay that comes from China. It is often used in the production of fine china dishes. Lastly, you may also hear porcelain clay referred to as ball clay, which is a type of clay that is commonly used in the production of ceramics and pottery.