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Extra TALK  
Kimyasal Analizler  
SiO2 62.7%
Al2O3 0.36%
Fe2O3 0.19%
CaO 0.54%
MgO 30.94%
Na2O 0.101%
K2O 0.04%
P2O5 0.044%
H2O 0.180%
L.O.I. 4.81
brighytness 89.5%