Table 1 Chemical composition (at%) of the pristine glass and alteration layer of the altered glass fragment of the CH depicted in Fig. 1c, d, measured by EDX analysis at 15 keV on the cross-section of the resin-coated and polished sample.

From: Glass alteration in atmospheric conditions: crossing perspectives from cultural heritage, glass industry, and nuclear waste management

O

Si

Al

Na

K

Ca

S

Cl

Mn

Fe

Ocalc

H2O %wt

Pristine

61.22

27.61

0.11

0.99

9.48

0.25

0.05

0.12

0.14

0.02

61.22

–

Altered

67.39

27.57

0.10

0.26

4.09

0.20

0.08

0.11

0.16

0.03

58.13

8.1

  1. The water content (last column) has been evaluated by comparing the O concentrations measured by EDX and calculated by stoichiometry (Ocalc column).
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