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Nero Marquina marble is a high quality, black stone marble extracted from the region of Markina, Basque Country in the North of Spain.
Compression tensile strength 629 kg/cm²
Tensile strength after freeze-thaw cycles 512 kg/cm²
Unitary modulus of bending tensile strength 137 kg/cm²
Heat expansion coefficient 0,0028 mm/m°C
Water imbibition coefficient 0,001700
Impact strength 38 cm
Mass by unit of volume 2690 kg/m³