Feldspar is a naturally occurring anhydrous, inorganic, igneous rock. It is a complex aluminum silicate containing varying amounts of sodium, potassium, and calcium. They are used as coarse aggregate in the production of asphalt and concrete. In addition, they are also used in the manufacture of enamel, scouring powder and glass. Our specification is SiO2 69.4%,Al2O3 16.86%,Fe2O3 0.18%,TiO2 0.05%,CaO 0.19%,MgO 0.02%,K2O 10.8%,Na2O 2.43%, L.O.I (1100 C) 0.3%, Fraction Retained on 75 um sieve 12, Moisture > 0.5, Hardness (Mohs) 7,pH 6.5 ~ 7. Size As per client requirement Packing As per client requirement
