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Heritage Science
Fig. 5 | Heritage Science

Fig. 5

From: Colour identification, degradation processes and findings in a fifteenth-century Book of Hours: the case study of Cofre n.º 31 from Mafra National Palace

Fig. 5

The three blue pigments: a detail of the Virgin’s mantle (f.91r) made up with layers of azurite, lapis lazuli, indigo and lead white; b FORS spectrum showing characteristics of both curves of azurite and lapis lazuli (Virgin’s mantle, f.91r); c µ-Raman spectrum of lapis lazuli (Virgin’s mantle, f.91r); d µ-Raman spectrum of indigo (Virgin’s mantle, f.25r); e illuminated initial with azurite in the centre background (f.72r); f µ-Raman spectrum of azurite showing its characteristic bands (illuminated initial, f.25r)

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