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Heritage Science
Fig. 8 | Heritage Science

Fig. 8

From: Organic colorants based on lac dye and brazilwood as markers for a chronology and geography of medieval scriptoria: a chemometrics approach

Fig. 8

Close-up for the lac dye cluster of the dendrogram generated by HCA applied to excitation and emission spectra of all the historical samples of lac dye-based paints from all three Portuguese Monasteries: Alcobaça (black), Lorvão (grey), and Santa Cruz (italic): Lac 1 (green), Lac 2 & 3 (pink), Lac 4 (light blue) and Lac 5 (yellow)

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