Clay is a material found abundantly in nature. But it is difficult to find pure clay. Most of the clay contains limestone, silica, mica, iron oxide minerals. There are 4 main clays, namely ilite, kaolinite, montmorillonite and other clay. Grain materials, usually less than 0.002 mm, are called clay.
Clay using generaly ceramic endustry formulation,plastic clay produce area in İstanbul,Turkish clay less plastic and less whitnes that problem import ukrania and bulgaria