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ONYX / OLIVE ONYX
OLIVE ONYX
Hardness      Mohs   3
Unit Volume Weight  gr/cm3 2.71
Density   gr/cm3  2.73
Water absorption at atmospheric pressure by weight - %  0.20
  by volume - % 0.50
Water absorption at boiling water by weight - % 0.10
  by volume - % 0.30
Porosity  0.50
Compressive strength kg/cm2  1053
Compressive strength after freesing kg/cm2 890
Average Abrasion Strength cm3/50 cm2  28,5
Degree of pores % 1
Modulus of Elasticity kg/cm2 14,22
     
     
Chemical analysis:    

SiO2

0,16  
Fe2O3 0.18  
CaO 51,69  
MgO 2,84