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Heritage Science
Fig. 6 | Heritage Science

Fig. 6

From: Analytical imaging studies of the migration of degraded orpiment, realgar, and emerald green pigments in historic paintings and related conservation issues

Fig. 6

Fitting of the arsenic -K-edge XANES spot analyses taken from an intact arsenic sulfide particle in the lower part of the paint layer (bottom layer 5), upper part of the degraded paint layer (top layer 5), calcium-containing ground layer (layer 1) and the lead white-containing top layer (layer 6) fitted with realgar, As2O3 and As2O5 references

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