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Fig. 3 | Heritage Science

Fig. 3

From: A combination of invasive and non-invasive techniques for the study of the palette and painting structure of a copy of Raphael's Transfiguration of Christ

Fig. 3

Identification of pigments in the RF-3 sample. Purple color. a Microphotograph of the cross section under visible light; b Elemental distribution map for Pb Mα-line, Ba Lα-line, S Kα-line, Al Kα-line; c SEM–EDX spectrum from the white underpainting (Ba, Pb, Al); d SEM–EDX spectrum from the purple paint layer; e Raman spectrum from the ground layer; f SEM–EDX spectrum from the ground layer (Mn); g µATR-FTIR spectrum from the pictorial and underpainting layers

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