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Heritage Science
Fig. 3 | Heritage Science

Fig. 3

From: Combined Micro- and Macro scale X-ray powder diffraction mapping of degraded Orpiment paint in a 17th century still life painting by Martinus Nellius

Fig. 3

Elemental and phase specific maps of a sub area (6.5 × 7 cm2) of the painting showing part of the left quince and an adjacent leaf. Top panel: MA-XRF maps of various elements; middle panel: MA-XRPD distributions of several crystalline compounds, assumed to have been originally present in the paint; lower panel: MA-XRPD distributions of secondary minerals, formed in situ. Arrows link elemental and secondary mineral distributions

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