| Component | Positive | Strength | Negative | Component |
| Ba | r = 0 | No correlation | r = 0 | ----------- |
| Er, Nb, Sc, U, Y | 0 < r < 0.25 | Very weak | −0.25 < r < 0 | Cr2O3, MgO, Na2O, TiO2, Dy, Eu, Gd, Ta, Tb |
| Ce, Ga, Lu, Sr, Tm, W, Yb, U < 60 PPM | 0.25 < r < 0.5 | Weak | −0.5 | Fe2O3, K2O, MnO, La, Nd, Pr, Rb, Sm, Th, Zr |
| Al2O3, CaO, LOI 1000˚C, V | 0.5 < r < 0.75 | Moderate | −0.75 < r < −0.5 | ------------ |
| ----------- | 0.75 < r < 0.9 | Strong | −0.9 < r < −0.75 | SiO2 |
| ------------ | 0.9 < r < 1 | Very Strong | −1 < r < −0.9 | ----------- |
| P2O5 | 1 | Perfect Correlation | −1 | --------- |