MOP? That stands for mother-of-pearl, the large round disc that Adorna used for a pendant. A very eye-catching design complimented by pewter and glass beads. Adorna chose larger beads closer to the pendant which helps balance the overall look.
MOP or nacre, is the inner shell coating of pearl oysters and mussels. Its iridescent look is highly attractive, easily tinted into many colours and has many uses besides jewelry. Did you know that shirt buttons were once made from MOP although cheap plastic has replaced its use?