Oxides | Weight (%) | |||
| Site 1 | Site 2 | Site 3 | Site 4 |
SiO2 | 48.66 | 49.23 | 49.12 | 49.02 |
TiO2 | 2.11 | 2.09 | 2.12 | 2.1 |
Al2O3 | 15.87 | 15.31 | 15.42 | 15.2 |
Fe2O3 | 12.03 | 13.07 | 12.98 | 13.05 |
MnO | 0.21 | 0.23 | 0.23 | 0.25 |
MgO | 5.56 | 5.05 | 5.32 | 5.24 |
CaO | 7.21 | 6.31 | 6.15 | 6.2 |
Na2O | 2.69 | 3.79 | 2.65 | 2.89 |
K2O | 0.41 | 0.51 | 0.45 | 0.5 |
P2O5 | 0.31 | 0.35 | 0.36 | 0.36 |
LOI | 5.02 | 4.15 | 5.25 | 4.32 |
Total | 100.08 | 100.09 | 100.05 | 99.13 |