Table 3 Mineralogical properties and geochemical analysis of selected soil samples

Quartz (%)

78

85.6

47

58

70

45

65

35

Kaolinite (%)

–

12.14

13

42

–

–

–

–

Dickite (%)

–

–

–

–

–

–

35

–

Microcline (%)

–

–

–

30

50

–

63

Muscovite (%)

2

–

–

–

–

–

–

2

Iron sulfate (%)

20

–

–

–

–

–

–

5

Sanidine (%)

–

2.26

–

–

–

5

–

–

Illites (%)

–

–

40

–

–

–

–

–

SiO₂

41.30

41.00

53.98

43.50

47.47

44.25

46.14

40.54

Al₂O₃

21.19

22.99

29.50

22.20

21.40

17.10

23.60

17.00

Fe₂O₃

29.41

25.61

2.87

24.30

20.35

23.43

16.44

29.41

CaO

0.44

0.62

0.14

0.19

1.04

0.84

0.80

0.68

Na₂O

0.16

0.11

2.17

0.51

0.41

0.26

0.18

0.41

K₂O

3.25

3.40

9.86

4.25

4.67

5.62

4.86

5.60

MgO

0.32

1.59

0.17

0.73

0.72

0.77

0.50

0.72

TiO₂

2.64

1.75

0.18

2.93

1.85

2.16

1.26

2.50

MnO

0.10

0.05

0.06

0.04

0.14

0.10

0.06

0.04

ZnO

0.03

0.04

0.01

0.01

0.02

0.01

0.02

0.01

CuO

0.02

0.01

0.01

0.03

0.01

0.02

0.04

0.01

Total

98.86

97.17

98.95

98.69

98.08

94.56

93.9

96.92

S/R

0.81

0.84

1.66

0.93

1.13

1.09

1.15

0.87