Table 1. Composition for illite supplementation1)
| Ingredients | %2) |
| SiO2 | 64.60 |
| Al2O3 | 20.80 |
| Fe2O3 | 3.05 |
| FeO | 0.46 |
| MgO | 2.30 |
| CaO | 0.53 |
| Na2O | 2.60 |
| K2O | 0.40 |
| TiO2 | 0.15 |
| Ignition loss | 4.74 |
Provided by SeobongBiobestech Co., Ltd., Seoul, Korea.
Provided by the Korea Chemical Institution, Daejeon, Korea.