SiO₂

NaO₂

CaO

Fe₂O₃

Al₂O₃

CuO

MnO

MgO

Other

dark red

59.3

20.60

3.60

1.59

9.40

2.83

0.13

1.81

S = 0.89

orange red

55.5

20.92

3.80

4.31

6.33

5.27

0.09

1.88

S = 1.30, Co. = trace

dark blue

59.4

23.34

10.8

0.64

2.16

0.63

0.03

2.60

Co = trace

dark blue

61.0

23.90

8.00

1.20

3.42

0.14

1.44

Co. = trace

Light blue

61.9

22.95

3.20

3.10

8.30

1.26

0.08

1.15

S = 0.37, Co = trace

Yellow

58.6

25.04

0.48

0.48

10.02

0.08

0.57

S = 0.61

bright yellow

57.2

22.42

4.00

0.48

12.54

0.31

0.11

1.66

S = 0.68

SiO₂

NaO₂

CaO

Fe₂O₃

Al₂O₃

CuO

MnO

MgO

Other

greenish-yellow

59.5

21.70

3.00

0.64

11.61

0.63

0.11

1.73

light green

56.4

20.35

5.80

0.48

4.84

0.04

1.44

S = 0.75

trans. Green

62.2

26.45

5.40

0.48

2.46

0.04

2.17

black

63.5

22.81

3.60

0.80

6.90

trace

0.57

S = 1.02