(From 0 to 10 mm)

Chemical Analysis

Dry Basis (105°C) EXPECTED MAXIMUM MINIMUM
Fe 64.5   63
SiO2 1.60 1.90  
Al2O3 0.70 1.30  
L.O.I. 4.95 6.55  
P 0.098 0.125  
MnO 0.070    
CaO 0.040    
MgO 0.030    
S 0.030    
TiO2 0.150    
K2O 0.002    
Na2O 0.002    

Natural Basis

Nat. Fe 60.42    
H2O (yearly average) 6.50    

Physical Composition (natural iron square ISO screens)

+3/8″(+9.53) mm 3.00 12.00  
+1/4″(+6.35 mm) 6.00    
+100 mesh (+149 microns) 60.00    
-100 mesh (-149 microns) 40.00