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Table 8 Chemical composition of the glaze and corrosion products of jar no. 7 as determined by EDS analysis

From: Multi-methodical study of Early Modern Age archaeological glazed ceramics from Prague

 

Content (wt%)

Al2O3

SiO2

CaO

Fe2O3

CuO

PbO

P2O5

SO3

Cl

K2O

d–glaze jar no. 7

8.2

32.3

2.3

57.3

e–corrosion crust

4.4

12.5

9

5.8

3.0

41.2

19.0

4.0

1.1

f–corrosion product

5.8

30.8

0.9

8.2

44.9

6.9

1.9

0.6

g–corrosion in crack

8.6

29.7

2.4

2.9

42.3

5.7

7.3

1.1