GOLDEN A SPECIFICATIONS OF ANALYSIS Hardness ( Mohs ) : 3 - 4 Unit Volume Weight ( g/cm3 ) : 2,69 Density ( g/cm3 ) : 2,70 Water Absorption at Atmospheric pressura ( By weight ) ( % ) : 0,1 ( By volume ) ( % ) : 0,3 Water Absorption at Boiling Water ( By weight ) ( % ) : 0,1 ( By volume ) ( % ) : 0,4 Compressive Strenght ( kgf/cm2 ) < 820 Avarage Abrasion Strenght ( cm3/50 cm2 ) : 20,3 Porosity ( % ) 0,4 Supstance Quantity With acid not to souble ( % ) 1,35