| Compound | Weight % |
| CaO | 51.52 |
| P2O5 | 39.89 |
| MgO | 0.46 |
| Na2O | 0.13 |
| Y2O3 | 0.07 |
| Al2O3 | 0.03 |
| SiO2 | 0.03 |
| Mn3O4 | 0.03 |
| SrO | 0.02 |
| TiO2 | 0.01 |
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