| Elements | Factor 1 | Factor 2 | Factor 3 |
| Al2O3 | 0.111 | −0.780 | −0.452 |
| CaO | 0.899 | 0.133 | 0.352 |
| Fe2O3 | 0.311 | 0.094 | 0.904 |
| K2O | 0.413 | 0.881 | −0.055 |
| LOI | −0.762 | −0.351 | −0.169 |
| MgO | 0.346 | 0.141 | 0.842 |
| MnO | 0.708 | 0.137 | 0.620 |
| Na2O | 0.338 | 0.719 | 0.220 |
| P2O5 | 0.948 | −0.084 | 0.142 |
| SiO2 | 0.215 | 0.807 | −0.415 |
| TiO2 | 0.241 | −0.776 | −0.301 |