Sample

CIA

PIA

ICV

Al/Na

K/Na

K2O/Al2O3

S-1

65.25

74.18

25.32

2.43

0.70

0.185

S-2

68.22

77.40

33.55

3.08

0.84

0.174

S-3

72.44

80.31

59.75

3.56

0.75

0.135

S-4

62.49

79.14

47.17

3.22

1.70

0.337

S-5

63.84

74.52

52.76

2.38

0.84

0.225

S-6

62.63

73.25

89.36

2.42

0.88

0.232

Average

65.81

76.47

51.32

2.85

0.95

0.214