Oxide

SiO₂

CaO

Al₂O₃

Fe₂O₃

TiO₂

MgO

SO₃

K₂O

ZrO₂

Other

LI^a

Content (%)

47.5

19.5

9.4

3.4

2.4

1.8

0.8

0.5

0.5

0.3

14.0