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Heritage Science
Fig. 9 | Heritage Science

Fig. 9

From: Chemical-technological research and radiocarbon AMS dating of wall painting fragments from the ruins of the XIIth-XIIIth centuries AD church from archaeological excavations in the city of Smolensk, Russia

Fig. 9

X-RAY pattern of samples no 1,2,3,5: a sample no 1 for plaster base: CaCO3 (calcite), CaCO3 (aragonite), SiO2; b sample no 5 for dark blue colour: CaCO3 (calcite), SiO2, Na4Al6Si8O23S4; c sample no 1 for blue colour: CaCO3 (calcite), SiO2, Na4Al6Si8O23S4, TiO2; d sample no 2 for brown colour: CaCO3 (calcite), SiO2, Al2(Si2O5)(OH)4; e sample no 3 for green colour: CaCO3 (calcite), SiO2, K(Mg,Fe,Al)2(Si,Al)4O10(OH)2

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