Number

SiO_2%

Al₂O_3%

CaO%

MgO%

Ni%

FeO%

2#

12.86

28.92

4.76

5.76

0.55

39.11

3#

12.00

24.34

3.70

5.04

0.47

30.91

4#

17.12

35.34

5.59

6.97

0.084

9.14