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Heritage Science

Table 1 SEM-EDX test element composition of jade in different regions (wt%)

From: Corrosion analysis of unearthed jade from Daye Zhen Tomb of Northern Zhou Dynasty

Element

C

O

Mg

Si

Ca

Fe

P

S

Inner matrix

9.32

52.29

14.73

11.32

11.88

0.46

  

Surface white layer

11.38

52.97

10.42

7.80

17.10

0.33

  

Brown intermediate layer

8.47

52.44

14.33

11.59

11.05

 

1.74

0.38

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