What is formula for porcelain?

Porcelain is primarily made from a mixture of kaolin (a type of clay), feldspar, and quartz. The typical formula can be represented as Al2O3·2SiO2·2H2O (for kaolin) combined with feldspar (K2O·Al2O3·6SiO2) and quartz (SiO2). The specific proportions of these components can vary depending on the desired characteristics of the final product. After mixing and shaping, porcelain is fired at high temperatures to achieve its characteristic hardness and translucence.