VOLAKAS

MINERALOGICAL COMPOSITION CHEMICAL ANALYSIS (Weight %)
CALCITE 8 CaO 31,80
ALBITE 92 K20 0,05
DOLOMITE   MgO 20,60
EPIDOTE   Na2O 0,20
QUARTZ   SiO2 0,06
HEMATITE   MnO 0,01
MUSCOVITE   Fe2O3 0,14
CHROMITE   CO2 46,20
SERICITE   Al2O3 0,00
CLAYS      
CLORITE      
PHYSICAL AND MECHANICAL PROPERTIES
APPARENT SPECIFIC WEIGHT Kg/m3 2760
MODULUS OF ELASTICITY tn/cm2  
ABSORPTION COEFFICIENT Wt% 0,28
ABRASION RESISTANCE mm (DIN 52108) 7,23
COMPRESSIVE STRENGTH Kg/cm2 1400
MICROHARDNESS KNOOP Kg/mm2  
MODULUS OF RAPTURE Kg/cm2 90,40