Grey - Slate
Quarry Location: Vila Real, Trás-os-Montes e Alto Douro
Water Absorption: 0.47 %
Density: 2800 kg/m³
Flexural Strength: 55.0 MPa
Compressive Strength: 41.5 - 44.0 MPa
Recommended Usage: Construction stone, ornamental stone
Additional Names: Ardoisia do Marao,Gris Ardosia do Marao Slate,Ardosia do Marao