The metal has a warm golden-brown glow. But a distinct patina develops on bronze after oxidation and skin contact, which, to the uninitiated, might look dirty or muddy—a metal that’s been put ...

Hart said that patina, a chemical process, is what gives bronze different textures and colors over time. The various chemicals create different reactions on the bronze and speed up the process of ...

where even patina — corrosion caused by exposure to the elements — was appreciated and sometimes desired. For this introduction of ancient bronze ware, Chinese ritual pieces have been brought ...