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Fig. 4 | Heritage Science

Fig. 4

From: A transparent dialogue between iconography and chemical characterisation: a set of foreign stained glasses in Portugal

Fig. 4

Binary/ternary plots showing the relations between the concentration (in weight percent of oxides) of a K\(_2\)O vs. CaO, b CaO/BaO vs. CaO/SrO, c Fe\(_2\)O\(_3\)/CaO vs. Fe\(_2\)O\(_3\)/SiO\(_2\), d Al\(_2\)O\(_3\)/CaO vs. Al\(_2\)O\(_3\)/SiO\(_2\), e normalised ratios Al\(_2\)O\(_3\)/SiO\(_2\) vs. TiO\(_2\)/Al\(_2\)O\(_3\) vs. SiO\(_2\)/CaO and f Cl vs. CaO

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