| Oxides |
Weight (%) |
|||
| Site 1 |
Site 2 |
Site 3 |
Site 4 |
|
| SiO2 |
75.18 |
74.94 |
75.01 |
75.95 |
| TiO2 |
0.15 |
0.06 |
0.08 |
0.12 |
| Al2O3 |
12.66 |
13.62 |
11.65 |
12.52 |
| Fe2O3 |
1.91 |
0.95 |
1.95 |
1.02 |
| MnO |
0.07 |
0.05 |
0.06 |
0.02 |
| MgO |
0.22 |
0.07 |
0.14 |
0.15 |
| CaO |
0.42 |
0.25 |
0.35 |
0.39 |
| Na2O |
3.05 |
3.04 |
3.11 |
3.15 |
| K2O |
4.73 |
5.23 |
5.54 |
4.87 |
| P2O5 |
0.19 |
0.201 |
0.19 |
0.22 |
| LOI |
0.68 |
1.18 |
1.01 |
0.99 |
| Total |
99.28 |
99.58 |
99.03 |
99.38 |