Feldspar is an aluminosilicate mineral of a framework structure of alkali metal or alkaline earth metal such as potassium, sodium, calcium and a small amount of cerium, and its main components are SiO2, Al2O3, K2O, Na2O, CaO and BaO. Feldspar is an important raw material for ceramics, glass and other manufacturing industries. As glass and ceramic products become more and more high …