Some worlwide bentonites

Algerian bentonites

*

Kutch Inde%

S & B Greece%

Wyoming Federal %

Wyoming Black hill %

South of the USA %

Bentonite of Mostaganem % [3]

Bentonite of Maghnia %

SiO₂

45.43

60.83

58.14

66.12

59

60.49

64.98

Al₂O₃

16.4

17.9

21.73

17.01

18.4

12.70

16.08

Fe₂O₃

14.05

4.34

2.46

2.46

5.1

2.70

2.93

CaO

1.18

1.9

0.86

1.37

3.88

3.60

0.61

MgO

2.43

2.83

2.42

1.51

2.86

2.29

3.51

K₂O

0.13

1.98

0.52

0.54

0.78

2.28

2.02

Na₂O

3.1

2.96

2.08

2.02

0.41

1.55

3.88

TiO₂

1.86

/

/

/

/

0.30

0.20

Loss on ignition

13.28

6.44

5.3

7.3

8.31

13.80

6.07