No.

Oxides

Berestovetsk basalt average composition (weight %)

Recommended additives FeO, CaO, MgO

Molecular quantities recommended for addition to the charge

Recommended weight additions in% for charge

1

SiO₂

49.46

2

TiO₂

2.56

3

Al₂O₃

13.28

4

Fe₂O₃

3.29

5

FeO

10.7

(0.127 − 0.108) = 0.019

1.36

6

MgO

6.41

(0.294 − 0.253) = 0.041

1.65

7

CaO

9.8

(0.228 − 0.194) = 0.034

1.93

8

Na₂O

2.44

(0.127 − 0.108) = 0.019

1.36

9

K₂O

0.38

10

Other

1.68

Total

100