From : Boulder Weight/Volume : ¦ 626 gr Parameter Result Unit Methods Iron ( Fe ) 46,20 % ICP Aluminium Trioxide ( Al2o3 ) 0,02 %ICP Calcium Oxide ( CaO ) 0,01 % ICP Magnesium Oxide ( MgO )0,01 % ICP Manganese Dioxide( MnO2 )0,03 %ICP Chromium Trioxide ( Cr2O3 ) 0,05%ICP Sodium Oxide ( Na2O ) 0,02% ICP Potassium Oxide ( K2O ) 0,01 % ICP Silicon Dioxide(SiO2)00,32%Gravimetric Titanium Dioxide (TiO2) 0,01 %ICP Lead ( Pb ) 0,02 % ICP Copper ( Cu ) 0,01 % ICP Zinc ( Zn ) 0,01 % ICP Silver ( Ag ) 0,01 % ICP Sulfur ( S ) 52,84 % Combustion Sertificate By SUCOFINDO . 50 / Bag.