A selection of lustres including 9 century AD polychrome and 10 century AD monochrome Abbasid lustres from Iraq, and 10 to 12 centuries AD Fatimid lustres from Egypt and Syria is studied in the present paper. The selection is based on previous studies that demonstrated that all of them contain metal silver nanoparticles and copper, which, when present, appears either as Cuþ or Cu2þ dissolved in...
