Table 1 Summary of material assignments in Apparition and Head within an Aureole
Color | Material assignment | MA-XRF | Raman | FORS | |
|---|---|---|---|---|---|
Apparition | Black 1 | Fabricated chalk | Fe, Ca, Ti, K, Si | Carbon | – |
Black 2 | Bone black pastel | Ca, Fe, P, S | Carbon | – | |
Black 3 | Carbon black pastel | Fe, Ti, Si | Carbon | – | |
Black 4 | Carbon black (and aniline black) pastel | Cu | Carbon | – | |
Black 5* | Vine charcoal | – | Carbon | – | |
Black 6 | Compressed charcoal | – | Carbon | – | |
Yellow | Yellow iron oxide and calcite pastel | Ca, Fe, K, S | Calcite | Yellow iron oxide | |
Head within an Aureole | Black A | Carbon black (and aniline black) pastel | Fe, Cr, Pb, Ca, Si, S | Carbon | – |
Black B* | Vine charcoal | – | Carbon | – | |
Pink A | Vermilion and calcite pastel | Ca, Hg, S | Vermilion, calcite | – | |
Pink B | Alizarin and calcite pastel | Ca, S | Calcite | Alizarin | |
Blue | Ultramarine pastel | S, Si, K | Ultramarine | – |