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Fig. 7 | Heritage Science

Fig. 7

From: Multi-analytical investigation into painting materials and techniques: the wall paintings of Abuna Yemata Guh church

Fig. 7

SEM–EDS spectrum from a surface of a green sample (taken as a line average spectrum) thereby inferring the possible existence of gypsum\anhydrite, calcite and components of green earth. The spectrum is consistent with the composition indicated by the results from the green areas with pXRF. Grains of calcite and gypsum/anhydrite and calcite were similarly identified. A SR-XRD analysis of a green sample in cross-sections has shown the use of calcite and anhydrite as the preparatory layer components (Fig. 10)

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