Samples

22

23

24

25

26

27

28

29

30

31

32

33

c

c

c

c

c

r

r

r

r

r

r

r

SiO₂

35.19

36.15

34.70

33.65

34.45

33.64

34.18

34.43

34.52

35.18

36.11

35.49

Al₂O₃

30.93

31.52

30.69

29.94

29.90

30.15

30.34

30.80

30.68

30.90

30.50

31.35

FeO

0.55

0.54

0.41

0.58

0.75

0.20

0.67

1.85

0.48

0.48

0.29

0.29

CaO

1.62

1.66

3.09

2.98

3.13

3.24

3.18

1.55

2.16

1.60

1.80

1.06

Na₂O

18.45

20.44

18.51

17.68

15.87

17.19

17.98

17.94

20.14

18.73

17.41

18.74

K₂O

3.43

3.30

2.86

3.28

3.70

3.49

3.15

3.19

2.85

3.50

3.54

3.32

SO₃

8.10

8.21

11.67

11.50

10.86

11.84

11.55

10.29

10.13

8.16

6.67

8.19

Total

98.28

101.82

101.94

99.61

98.66

99.75

101.05

100.05

100.95

98.53

96.32

98.44

O

21.00

21.00

21.00

21.00

21.00

21.00

21.00

21.00

21.00

21.00

21.00

21.00

Si

4.588

4.570

4.367

4.344

4.469

4.329

4.350

4.425

4.407

4.580

4.777

4.602

Al

4.753

4.698

4.552

4.556

4.572

4.574

4.552

4.666

4.617

4.742

4.755

4.791

Fe

0.060

0.057

0.043

0.063

0.081

0.021

0.072

0.199

0.051

0.052

0.032

0.032

Ca

0.226

0.224

0.417

0.412

0.435

0.447

0.433

0.214

0.295

0.222

0.255

0.148

Na

4.665

5.011

4.517

4.427

3.991

4.289

4.436

4.470

4.984

4.728

4.466

4.712

K

0.571

0.532

0.460

0.541

0.612

0.573

0.512

0.522

0.464

0.581

0.597

0.549

S

1.790

1.760

2.490

2.518

2.388

2.582

2.492

2.243

2.192

1.800

1.496

1.801

Total

16.653

16.852

16.845

16.862

16.547

16.815

16.847

16.738

17.009

16.704

16.378

16.633