Phase

Analyzed

point

Composition (wt%)

O

Al

Si

S

K

Ca

Fe

Cu

Zn

As

Sb

Cu-Fe-O-S-As-Zn-Al-Si-K-Sb

7

37.1

1.4

9.5

0.5

0.5

42.1

4.8

1.2

1.9

1.1

2

40.7

1.8

11.7

0.5

27.5

9.2

6.4

2.2

5

43.4

1.8

14.9

0.3

0.3

0.32

24.8

1.5

10.2

1.1

0.9

8

35.0

22.0

21.4

0.6

16.0

5.1

9

34.3

34.1

16.1

10.8

4.7

6

18.1

1.1

2.6

48.9

2.3

27.0

Fe oxide

3

39.4

2.5

5.3

46.5

4.0

2.0

4

35.4

2.1

3.7

44.9

2.1

11.3

1

32.2

54.1

5.2

3.2

5.4