BLACK CLOUD

Type material : Onyx
Country : Italy
Prevailing market : Worldwide
Compressive strenght : 1614/kg cm²
After freezing : 1609/kg cm²
Ultimate tensile strenght : 126/kg cm²
Coef.thermal expansion : 0.0052 mm/m°C
Water absorption : 0.13%
Impact test/min. fall height : 32.00 cm
Frictional wear test : –
Bulk density : 2702 kg/m³