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Table 3 Summary of the results of the stratigraphy of microsample A1 based on SEM–EDS and molecular spectroscopies, for more details please see text

From: Silver paints in medieval manuscripts: a first molecular survey into their degradation

A1 Layer 1 Layer 2 Layer 3 Layer 4
Ground Blue colour (filler and azurite) Pink colour Silver
SEM image
EDS results* Ca, S (gypsum) Pb (lead white) Ag (silver leaf) Ca (Chalk) Cu (azurite) Ca, K, S (pink pigment lake) Al, Si (lapis lazuli) Ag (silver leaf) Cu (azurite) Pb (lead white) Ag, S (Ag2S)
  1. * Elements C and O are always present in EDS spectra