Table 3.
List of main elements, pigments and other compounds identified by means of combined SEM-EDX and spectroscopic techniques
| Sample | SEM-EDX | ATR-FTIR | Raman | Visible reflectance | Pigments and other detected materials |
|---|---|---|---|---|---|
| 1 | Hg + S + Au | Organic binder | Cinnabar | Cinnabar | Cinnabar + gold leaf + organic binder |
| 2 | Fe + Pb | Red ochre | Red ochre | Red ochre | Red ochre + undetermined lead-based substance |
| 3 | Hg + S | – | Cinnabar | Cinnabar | Cinnabar |
| 4 | Ca + Hg + Pb + P | Calcite + calcium phosphate | Calcite + cinnabar + litharge | Cinnabar | Calcite + cinnabar + litharge + bone white/ash |
| 5 | Fe | Red ochre | Quartz | Red + yellow ochre | Red + yellow ochre |
| 6 | Fe | Yellow ochre | Yellow ochre | Yellow ochre | Yellow ochre |
| 7 | Fe | Red ochre | Red ochre | Red ochre | Red ochre |
| 8 | Fe + Pb | Yellow ochre | Yellow ochre + massicot | Yellow ochre | Yellow ochre + massicot |
| 11 | Fe | – | Hematite | Hematite | Hematite |