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