Fig. 9From: Painted plaster and glazed brick fragments from Achaemenid Pasargadae and Persepolis, IranSEM backscatter image of the pale yellow glaze from brick fragment FSC-A-3d in cross-section. The dark gray particles are un-reacted silica; the white particles are lead antimonate, which give the glaze its yellow color. The particles are bound in a glassy matrix containing lead, silicon and oxygenBack to article page