Chemical composition, %
|
Silica Sand
|
SiO2
|
TiO2
|
Al2O3
|
Fe2O3
|
CaO
|
MgO
|
K2O
|
Na2O
|
Loss on ignition
|
Grade 1
|
54-59
|
0.9-1.2
|
41-41.5
|
1.0-1.2
|
0.27-0.35
|
0.19
|
0.28-0.4
|
0.19-0.2
|
13.35-13.6
|
Grade 2
|
56-60
|
0.8-1.1
|
40-41
|
1.2-1.5
|
0.27-0.35
|
0.18
|
0.85
|
0,16-0,2
|
13.16-13.4
|
Grade 3
|
60-65
|
0.77-0.9
|
37-39
|
1.3-1.7
|
0.20-0.3
|
0.20
|
0.69
|
0.14-0.18
|
11-12.5
|
|
Particle-size distribution, %
|
Silica Sand
|
Residue %, µm, (fraction)
|
|
>250
|
250-50
|
50-10
|
<10
|
Grade 1
|
0.2
|
0.96
|
2.9
|
95.94
|
Grade 2
|
0.06
|
2.1
|
4.5
|
93.35
|
Grade 3
|
1.4
|
7.7
|
7.8
|
83.1
|
|
|