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Basalt (dense volcanic) vs Gneiss
Property comparison of Basalt (dense volcanic) and Gneiss, both stone.
| Property | Basalt (dense volcanic) | Gneiss | Difference |
|---|---|---|---|
| Elastic modulus | 85,000 MPa | 45,000 MPa | -47% |
| Poisson ratio | 0.3 | 0.2 | -33% |
| Density | 3,000 kg/m³ | 2,700 kg/m³ | -10% |
| Thermal conductivity | 2 W/m·K | 2.5 W/m·K | +25% |
| Specific heat | 850 J/kg·K | 800 J/kg·K | -6% |
| Coefficient of thermal expansion | 0.000006 1/K | 0.000007 1/K | +17% |
Difference is Gneiss relative to Basalt (dense volcanic). Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
Basalt (dense volcanic)
- standard
- ASTM
Gneiss
- standard
- ASTM C615
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