Table 3 Chemical composition (in wt%) of model glass (of cited references).

From: Alteration of medieval stained glass windows in atmospheric medium: review and simplified alteration model

References

 

Name

SiO2

Al2O3

K2O

CaO

MgO

MnO

Na2O

Fe2O3/FeOa

P2O5

TiO2

others

Total

37,98,102,125,126,178

 

Si-K-Ca

50

2

25

18

3

   

2

  

100.0

88

 

SG1

52

2.4

22.6

17.7

3.3

 

0.4

 

1.6

 

100.0

88

 

SG2

54.7

2.2

20.6

15.6

3.5

 

3.4

   

100.0

36,85,91,140

 

SG3

51.3

1.8

19.2

16.8

4

1

1.1

1.2

3.8

 

100.2

29,31,136,147

 

M1 or MI

48

1.5

25.5

15

3

 

3

 

4

 

100.0

31,131,136

 

M3

60

 

15

25

      

100.0

128,179

 

Ca-K

53.67

0.83

18.77

21.57

3.3

 

1.53

   

99.7

127

 

SC

53

1.7

18

15

5.8

1

1

 

4.4

 

99.9

127

 

TR

51

2.3

24

16

3

0.8

0.5

0.5

1.9

 

100.0

127

 

CLI

50.5

1.8

20.2

19

3.9

1.5

0.5

0.5

1.8

 

99.7

127

 

CLII

46

3.5

11

30

4

0.5

0.5

0.8

3.7

 

100.0

30

 

Potash-lime

60

 

15

25

      

100.0

100

 

KCS

46.2

3.6

21.9

20.5

2.9

 

0.8

 

3.3

0.1

99.3

180

 

KCV

57.14

4.16

17.56

16.64

1.96

 

0.1

0.12

1.76

0.06

0.48a

100.0

111,147

 

M1.0

54.2

 

28.8

17

       

100.0

148

 

Glass 2

48.4

2.5

10.6

30.3

3.2

1.1

0.5

 

3.4

 

100.0

148

 

Glass 3

47.2

2.4

16.3

26

3.2

1.1

0.5

 

3.3

 

100.0

148

 

Glass 4

46.1

2.3

21.7

21.9

3.1

1.1

0.5

 

3.3

 

100.0

131

 

M I53.1

53.1

1

18

17.8

5

 

3.2

 

1.9

 

100.0

131

 

M 2.0

57.1

 

22.5

20.4

      

100.0

65,132

 

VK

52.19

2.39

14.9

14.9

4.9

0.76

1.8

0.7

3.34

0.24

96.1

133

 

GIC1

46.1

1.6

13.9

18.8

7.4

1.7

3

 

7

 

99.5

134

 

4

47.33

3.34

18.81

22.65

3.22

1.02

0.7

0.06

2.87

 

100.0

135,139

 

BMG

51

 

20.4

28.6

      

100.0

137

 

Type 3

53.02

2.5

17.8

14.22

4.21

0.91

0.55

0.99

3.47

0.14

2.17b

100.0

138

 

V1

61.11

1.99

12.29

18.5

3.82

0.03

0.38

0.15

1.67

0.09

 

100.0

138

 

V2

57.07

1.38

16.74

18.64

3.57

0.02

0.67

0.22

1.62

0.06

100.0

138

 

V3

53.1

0.73

23.49

17.53

3.24

0.02

0.26

0.09

1.52

0.03

100.0

113

 

VM

51.5

1.8

18.3

17.3

4.3

2.0

1.2

 

3.2

 

99.6

113

 

VNM

52.4

1.9

18.8

17.6

4.3

 

1.2

 

3.4

 

99.6

  1. aOthers are: SnO2, CuO, SO3, PbO.
  2. bOthers are: PbO, Cl, SO3, CuO, ZnO, CoO, V2O3.