L.O.I

MgO

K₂O

Na₂O

CaO

Fe₂O₃

AL₂O₃

SiO₂

Element

0.01 - 0.35

0

0.02 - 0.06

0 - 0.01

0.07 - 0.2

0.2 - 0.6

0.4 - 1.7

97-99

Percent