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Table 2.
XRF Analysis of raw clay.
| Chemical formula | Chemical composition (%) |
|---|---|
| Al2O3 | 22.18 |
| SiO2 | 52.04 |
| Fe2O3 | 10.48 |
| Na2O | 8.01 |
| K2O | 4.81 |
| MgO | 2.47 |