Table 7 Chemical compositions of the marked positions in Fig. 9c, e, f, and i (in wt%)

From: Corrosion of Longquan celadons in the marine environment: study on the celadons from the Dalian Island shipwreck of the Yuan Dynasty

Position No

Ratio

Na2O

MgO

Al2O3

SiO2

K2O

CaO

TiO2

Fe2O3

Possible phase

P1

wt%

 

34.60

30.86

21.82

2.61

2.65

4.50

2.97

Quintinite

 

mol%

 

51.48

18.00

21.61

1.65

2.81

3.35

1.10

P2

wt%

0.30

1.97

33.94

41.04

 

19.32

3.44

 

Anorthite

 

mol%

0.33

3.38

22.84

46.87

 

23.64

2.95

 

P3

wt%

 

60.98

38.13

0.89

    

Quintinite

 

mol%

 

79.69

19.54

0.77

    

P4

wt%

 

57.94

39.65

2.41

    

Quintinite

 

mol%

 

77.16

20.71

2.14

    

P5

wt%

 

17.03

3.75

51.12

 

27.13

 

0.97

Diopside

 

mol%

 

23.62

2.04

47.18

 

26.83

 

0.34

P6

wt%

 

35.11

25.12

4.54

   

35.23

Quintinite

 

mol%

 

61.82

17.35

5.32

   

15.51

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