Mineral like ;
a. silica sand
1. Silica and quartz in the form of low iron silica sand with content of 99.5% SiO2 and 120 ppm Fe2O3
2. Silica and quartz in the form of white silica with 95% SiO2 content, 85% natural whiteness or through a calcined test at a temperature of 700ºC
whiteness 90%, and passes a 16 mesh filter
According to the latest for the export of silica are the specifications mentioned above
