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Fig. 6 | Heritage Science

Fig. 6

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

Fig. 6

SEM images of the microsamples (backgrounds were removed) from the red flower bud in folio 73: B1 and B2 and its schematic depiction: in black is silver and in gray is the ground composed by chalk and gypsum. Infrared spectra, bottom left, from the ground displaying chalk (filled circle), gypsum (filled triangle) and a polysaccharide binder (filled square) compared with a reference proteinaceous (filled star) paint: 90% chalk: 10% gypsum. Bottom right, egg white and gum arabic references

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