Fig. 5
From: Artificial orpiment, a new pigment in Rembrandt’s palette
Paint cross-section from the red dress of Rebecca. First row sample location (X) and light microscopic images, dark field (DF) and ultraviolet (UV), photographed at ×500 magnification. Second row SEM backscattered-electron (BSE) and bright field (BF, oil-immersion) images, zooms corresponding to rectangle in ×500 DF image of first row, yellow arrows point to ball-shaped, bright yellow particles. Third row BSE and corresponding EDX maps of As, S, Pb, Sn, Hg, same region as images of second row, and EDX spectrum of ball-shaped, bright yellow particle showing As and S