Type or rock : Voltzia sandstone Main commercial name : fine grain gray red Vosges sandstone Other commercial names : grès ferme d’Alsace Dominant color : gray-red/gray-pink Dominant aspect : fine grains Identification number : 1 Apparent density (t/m3) : 2.05 Porosity (%) : 18 to 23 Coefficient of water absorption : 0.63 Compressive strength (M Pa) : 45 to 65 Speed of sound propagation (m/s) : 2155 Wear to metallic disk (mm) : 35 to 45 Bonding strength (da N) : 56 Liability to frost damage (cycles) : > 240
The sample defines the material as to its origin and color, but does not involve absolute identity of tint, veining and texture between the sample and supply.
The various cut finishes are not available for all types of stone. For further information, contact us