Chalk (soft calcareous) vs Dolomite (CaMg(CO3)2)
Property comparison of Chalk (soft calcareous) and Dolomite (CaMg(CO3)2), both stone.
| Property | Chalk (soft calcareous) | Dolomite (CaMg(CO3)2) | Difference |
|---|---|---|---|
| Tensile strength | 1 MPa | 8 MPa | +700% |
| Poisson ratio | 0.3 | 0.2 | -33% |
| Density | 1,800 kg/m³ | 2,750 kg/m³ | +53% |
| Thermal conductivity | 1.2 W/m·K | 3.5 W/m·K | +192% |
| Specific heat | 840 J/kg·K | 880 J/kg·K | +5% |
| Coefficient of thermal expansion | 0.000012 1/K | 0.000008 1/K | -33% |
Difference is Dolomite (CaMg(CO3)2) relative to Chalk (soft calcareous). Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- standard
- ASTM D7012
- standard
- ASTM D7012
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