What are the inorganic materials?

Inorganic materials include ceramics, glass and cement, and later refractories appeared. Inorganic materials, such as inorganic nonmetallic materials, optical glass, industrial ceramics, asbestos, mica, cast stone, diamond and graphite, have become indispensable and important materials in modern science and technology.

Inorganic materials can be generally divided into two categories: traditional inorganic materials and new inorganic materials. Traditional inorganic materials refer to materials made of silicon dioxide and its silicate compounds, so they are also called silicate materials. New inorganic materials are made of oxides, nitrides, carbides, borides, sulfides, silicides and various nonmetallic compounds through special advanced processes.