Size (µm)

Distribution (%)

Mass

SiO2

Fe

Al2O3

210

1.10

2.60

1.00

2.20

149

6.90

16.2

2.00

3.60

105

13.4

31.3

4.10

5.10

74

20.7

44.8

8.60

6.90

53

28.9

59.9

13.7

9.20

44

34.6

69.5

17.4

11.6

37

38.6

75.2

20.7

14.0

−37

100.0

100.0

100.0

100.0