Samples

Colour

SiO₂

Al₂O₃

Fe₂O₃

MnO

MgO

CaO

Na₂O

K₂O

TiO₂

P₂O₅

H₂O

LBF

White

52.83

29.74

2.34

n.d

0.29

n.d

0.11

1.17

1.06

0.08

12.03

LRF

Red

51.06

30.18

4.48

0.00

0.22

n.d

0.11

1.16

1.13

0.06

11.97

LMF

Brown

56.55

25.44

4.25

0.01

0.36

n.d

0.08

1.01

1.10

0.08

11.46

LVF

Purple

45.73

34.41

4.92

n.d

0.07

n.d

0.06

0.57

1.12

0.09

13.12

LJPF

Yellow

55.33

27.81

3.97

0.00

0.24

n.d

0.06

0.77

0.94

0.21

11.40

LNF

Black

57.05

25.22

2.23

0.01

0.37

n.d

0.07

0.97

1.03

0.10

13.02

LJFF

Dark-yellow

42.71

18.33

26.02

n.d

0.14

n.d

0.05

0.63

0.87

0.12

11.69