Breccia Novella (White Vessels) PHYSICAL AND MECHANICAL PROPERTIES Bulk specific gravity 2.69 gr/cm3 Coefficient of absorption 0.40 % Porosity 1.07 % Compression strength 1580 kg/cm2 Flexure strength 216 kg/cm2 Friction wear resistance 3.10 mm Impact strength 35 cm Knoop microhardness 148 kg/cm2