Valori tipici | |
SiO2: | 99.88% |
A1203: | 200 ppm |
Fe2O3: | 80 ppm |
Na2O: | 50 ppm |
K2O: | 50 ppm |
TiO2 | 30 ppm |
CaO: | 30 ppm |
MgO: | 20 ppm |
8-5 mm | 5-3 mm | 3-1 mm | 1-0 mm |
10-20 mesh | 20-40 mesh | 40-70 mesh | |
70-140 mesh | 200 mesh | 325 mesh | 500 mesh |