Wall Painting Fragment

Pink-lavender and light brown-yellow pigment on white plaster. Light brown-yellow and pink-lavender zones. The fragment was examined and analyzed in the Straus Center in 2023. Ultraviolet-induced fluorescence imaging produced results consistent with madder lake pigment in the purple color; visible-induced luminescence imaging suggested a very small amount of Egyptian blue pigment in the purple color; and analysis via Fourier transform infrared spectroscopy (FTIR) identified gypum in the white as well as gypsum and trace kaolin in the yellow color. The plaster was identified as gypsum plaster.