YuTong potassium feldspar

Hardness: 7-8.  Color: white/ pink.
Application：using in glass industry, cement, ceramic, coating etc.
Specification:
Silica (SiO2)- 60.56%
Alumina (Al2O3)- 22.95%
Ferric Oxide (Fe2O3)- 00.21%
Calcium oxide (CaO)- 00.28%
Potash (K2O)- 12.25%
Sodium oxide (Na2O)- 3.40%
Loss on ignition (L.O.I)- 00.76%