Physical and chemical composition of metakaolin.
| Oxides | SiO2 | Al2O3 | Fe2O3 | CaO | MgO | Na2O | TiO2 | K2O | MnO | P2O5 | LOI | Total |
| MK (wt%) | 56.99 | 35.97 | 1.18 | 0.40 | 0.18 | 0.10 | 1.27 | 0.16 | 0.04 | 0.03 | 1.73 | 98.05 |
| Particles size distribution (μm) | D 10 | D 50 | D 90 | |||||||||
| 3.66 | 31.80 | 101.01 | ||||||||||