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Total content of Mg calcite and aragonite defined through different crystallographic parameters and the number of cations based on 6 atoms of oxygen (O).
| Component | 100 % of calcite | 100 % of aragonite | Number of cations | Mg calcite | Aragonite |
|---|---|---|---|---|---|
| FeCO3 | 1.90 | – | Fe2+ | 0.032 | – |
| MnCO3 | 1.80 | – | Mn2+ | 0.031 | – |
| MgCO3 | 11.05 | – | Mg2+ | 0.258 | – |
| CaCO3 | 85.25 | 97.86 | Ca2+ | 1.678 | 1.970 |
| SrCO3 | – | 2.13 | Sr2+ | – | 0.030 |
| Σ | 100.0 | 99.99 | 1.999 | 2.000 |
