# Sandstone vs. Marble

Both sandstone and marble are natural stone.

For each property being compared, the top bar is sandstone and the bottom bar is marble.

Metric UnitsUS Customary Units

## Mechanical Properties

Compressive (Crushing) Strength, MPa | 120 | |

540 |

Elastic (Young's, Tensile) Modulus, GPa | 38 | |

54 |

Poisson's Ratio | 0.25 | |

0.2 |

Shear Modulus, GPa | 15 | |

27 |

Tensile Strength: Ultimate (UTS), MPa | 4.0 | |

9.0 |

## Thermal Properties

Maximum Temperature: Mechanical, °C | 400 | |

250 |

Specific Heat Capacity, J/kg-K | 880 | |

870 |

Thermal Conductivity, W/m-K | 5.6 | |

3.1 |

Thermal Expansion, µm/m-K | 10 | |

21 |

## Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm | 8.5 | |

8.5 |

## Otherwise Unclassified Properties

Density, g/cm^{3} |
2.6 | |

2.7 |

## Common Calculations

Stiffness to Weight: Axial, points | 8.1 | |

11 |

Stiffness to Weight: Bending, points | 43 | |

47 |

Strength to Weight: Axial, points | 0.43 | |

0.93 |

Strength to Weight: Bending, points | 2.1 | |

3.6 |

Thermal Diffusivity, mm^{2}/s |
2.4 | |

1.3 |

Thermal Shock Resistance, points | 0.75 | |

0.57 |