Composition (wt%)

SiO₂

Fe₂O₃

Al₂O₃

MgO

TiO₂

CaO

K₂O

LOI

CBA

35.63 - 62.12

3.93 - 5.58

19.43 - 27.13

1.24

2.62

0 - 0.5

2.05

15