Components

Compositions (%)

SiO2

64.74 - 66.59

Al2O3

13.89 - 14.17

CaO

1.64 - 2.81

Fe2O3

0.96 - 1.64

MgO

0.60 - 0.94

Na2O

1.23 - 1.47

K2O

0.95 - 1.27

MnO

0.16 - 0.18

H2O

2.22 - 2.61