Is porcelain a type of clay?

While there are thousands of clay bodies available for purchase, the 3 basics types are porcelain, stoneware and earthenware. The maturity temperature, workability, and color of these 3 categories can vary based on what is added. read more

They brought an improved type of kiln, and one of them spotted a source of porcelain clay near Arita, and before long several kilns had started in the region. read more

Kaolin is a 1: 1 clay which means that there is one tetrahedral sheet of silica (SiO4) linked through oxygen atoms to one octahedral sheet of alumina (AlO6) octahedra. A secondary clay is one that has been transported by water from the site of it’s primary alteration and settled into layers. read more

Earthenware clays were some of the earliest clays used by potters, and it is the most common type of clay found. These clays are highly plastic (easily worked) and can be sticky. Earthenware clays contain iron and other mineral impurities which cause the clay to reach its optimum hardness at between 1745°F and 2012°F (950°C and 1100°C). read more