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Description: Limestone is a sedimentary rock composed primarily of calcium carbonate (CaCO3) in the form of the mineral calcite. It most commonly forms in clear, warm, shallow marine waters. It is usually an organic sedimentary rock that forms from the accumulation of shell, coral, algal, and fecal debris. It can also be a chemical sedimentary rock formed by the precipitation of calcium carbonate from lake or ocean water.
Major Elements
Certified Concentrations
| Analyte | Method | Certified Value | Unit | Uncertainty (±2S) |
|---|---|---|---|---|
| Al2O3 | XRF1 | 0.80 | % | 0.11 |
| CaO | XRF1 | 48.31 | % | 1.67 |
| Cr2O3 | XRF1 | 0.378 | % | 0.030 |
| Fe2O3 | XRF1 | 0.782 | % | 0.13 |
| K2O | XRF1 | 0.03 | % | 0.01 |
| MgO | XRF1 | 0.833 | % | 0.071 |
| MnO | XRF1 | 0.05 | % | 0.01 |
| SiO2 | XRF1 | 10.1 | % | 0.68 |
| CCE | ASTM C253 | 86.60 | % | 1.95 |
| LOI | LOI2 | 38.71 | % | 0.39 |
Provisional Concentrations
| Analyte | Method | Provisional | Two Standard Deviation (2s) ± | Unit |
|---|---|---|---|---|
| Na2O | XRF1 | 0.02 | 0.01 | % |
| SO3 | XRF1 | 0.05 | 0.03 | % |
| TiO2 | XRF1 | 0.05 | 0.02 | % |
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US Geostandards, the original manufacturer (African Mineral Standards (PTY Ltd) and their associates are not Liable for any issues, damages or losses occurring from the use of this material.
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