Major constituent

Wt., %

Trace constituent

Conc., ppm

SiO2

Al2O3*

Fe2O3

CaO

MgO

Na2O

K2O

MnO

ZnO

H2O(humidity)

L O I**

Total

13.50

27.00

12.30

6.53

4.66

1.04

1.55

8.40

3.40

1.81

21.30

101.49

åREE

Cu

Co

Ni

U

6200

1900

1000

730

400