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Gneiss vs Granite (typical)
Property comparison of Gneiss and Granite (typical), both stone.
| Property | Gneiss | Granite (typical) | Difference |
|---|---|---|---|
| Elastic modulus | 45,000 MPa | 50,000 MPa | +11% |
| Poisson ratio | 0.2 | 0.28 | +40% |
| Density | 2,700 kg/m³ | 2,700 kg/m³ | 0% |
| Thermal conductivity | 2.5 W/m·K | 3 W/m·K | +20% |
| Specific heat | 800 J/kg·K | 790 J/kg·K | -1% |
| Coefficient of thermal expansion | 0.000007 1/K | 0.000008 1/K | +14% |
Difference is Granite (typical) relative to Gneiss. Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
Gneiss
- standard
- ASTM C615
Granite (typical)
- standard
- ASTM
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