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Chemical composition of mortar enriched with ferric oxide and Luserna stone. Weight percentage of silicon dioxide and ferric oxide added (mortar) is highlighted.
| Mortar | Luserna Stone | ||
|---|---|---|---|
| Element | % of Weight | Element | % of Weight |
| SiO2 | 59.7 | SiO2 | 72.0 |
| CaO | 21.4 | Al2O3 | 14.4 |
| Fe2O3 | 8.4 | K2O | 4.1 |
| Al2O3 | 3.3 | Na2O | 3.7 |
| SO3 | 1.1 | CaO | 1.8 |
| K2O | 1.0 | FeO | 1.7 |
| MgO | 0.7 | Fe2O3 | 1.2 |
| Na2O | 0.4 | other oxides | 1.1 |
| other oxides | 4.0 | ||
