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Heritage Science
Fig. 8 | Heritage Science

Fig. 8

From: Composition and techniques of the Ticinese stucco decorations from the 16th to the 17th century: results from the analysis of the materials

Fig. 8

Overburned binder related particle with a glassy structure in sample CV-04. The glassy part is rich in Mg and Silico-aluminate phases, but there are newly formed calcite crystals within fractures and veins. The Au content in the spectra is due to the metallization of the sample. a transmitted light crossed polars; b BSE image with the indication of point 1 (corresponding to spectrum C) and point 2 (spectrum D); c Elemental analyses of point 1 (calcite filling micro-cracks). d Chemical analyses of point 2 (amorphous part rich in Mg-Si-Al)

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