Rock type composition

(wt%)

Grey syenite

Pinky syenites

Whitish syenites

Contact granite

Gabbro

Peridotgabbro

Dark-grey MDF1

Light-grey

MDFp1

MDF13

MDF6

MDF20

MDF23

MDF8

MDF4

MDF22

MDF12

SiO2

62.67

61.30

60.08

60.42

62.23

63.09

74.00

49.82

49.95

42.08

TiO2

0.89

0.82

1.02

1.02

0.90

0.87

0.04

1.68

1.71

1.71

Al2O3

17.59

18.43

18.13

18.22

17.79

17.48

13.72

13.60

14.09

15.83

Fe2O3t

3.71

3.34

4.16

4.16

3.43

3.48

0.80

13.41

12.93

16.89

MnO

0.09

0.08

0.10

0.10

0.07

0.08

0.03

0.16

0.16

0.27

MgO

0.73

0.71

0.97

0.97

0.79

0.76

0.08

9.10

8.63

9.29

CaO

1.71

2.43

2.75

2.83

1.82

2.20

0.46

9.05

9.04

10.79

Na2O

5.33

5.25

5.17

5.18

5.02

4.90

2.90

2.73

2.82

2.15

K2O

6.34

6.26

5.95

5.87

6.98

6.23

6.82

0.35

0.37

0.39

P2O5

0.25

0.25

0.30

0.30

0.24

0.27

0.01

0.17

0.18

0.03

LOI

0.22

0.25

0.52

0.40

0.27

0.16

0.49

0.00

0.00

0.00

Total

99.53

99.12

99.13

99.46

99.54

99.55

99.34

100.06

99.87

99.43

Na2O + K2O

11.67

11.51

11.12

11.05

11.10

11.13

9.72

3.08

3.19

2.54

Al2O3/TiO2

19.76

22.48

17.77

17.86

19.77

20.09

343

8.10

8.24

9.26

Na2O/K2O

0.84

0.84

0.87

0.88

0.72

0.79

0.43

7.8

7.6

5.5

(Na2O + K2O) − (0.37*SiO2 − 14.43)

2.91

3.28

3.32

3.12

3.40

2.22

-3.23

-0.92

-0.86

1.40

Na2O + K2O/Al2O3

0.66

0.62

0.61

0.61

0.67

0.64

0.71

0.23

0.23

0.16

CaO + Na2O + K2O

13.38

13.94

13.87

13.88

13.82

13.33

10.18

12.13

12.23

13.33

Mg#

24.89

26.36

26.20

26.20

27.94

22.94

12.06

53.33

52.92

48.26

CIPW Norms (wt%)

Quartz

1.97

-

-

-

0.84

4.50

29.84

-

-

-

Orthose

37.70

37.40

35.00

35.00

41.53

37.03

40.76

2.06

2.19

2.31

Albite

45.38

44.91

44.22

44.22

42.76

41.70

24.82

23.04

23.85

7.54

Anorthite

5.38

8.32

9.21

9.21

5.43

7.34

2.24

23.76

24.68

32.50

Nepheline

-

-

-

-

-

-

-

-

-

5.80

Diopside

1.28

1.88

2.52

2.52

1.75

1.57

-

16.35

15.57

17.39

Hypersthene

4.99

4.59

4.47

4.47

4.47

4.62

1.20

18.69

18.73

-

Olivine

-

0.09

1.13

1.13

-

-

-

9.96

8.84

27.88

Magnetite

1.01

0.65

0.80

0.80

0.94

0.95

0.28

2.56

2.48

3.25

Ilmenite

1.70

1.57

1.95

1.95

1.72

1.66

0.08

3,18

3,25

3.26

Corindon

-

-

-

-

-

-

0.76

-

-

-

Apatite

0.58

0.59

0.70

0.70

0.56

0.63

0.02

0.39

0.42

0.07

TOTAL

100.00

100.00

100.00

100.00

100.00

100.00

100.00

100.00

100.00

100.00