U+9516 "锖" CJK Unified Ideograph-# Unicode Character

U+9516 "锖" CJK Unified Ideograph-# is a Chinese character primarily used in the context of traditional metalworking and chemistry, where it denotes the term "tarnish" or "patina," specifically referring to a thin layer of corrosion or discoloration that forms on the surface of metals like iron or steel as a result of oxidation or chemical reactions. In Chinese, it is pronounced "qiāng" in Mandarin and is associated with the radical for metal, reflecting its material connotation. Its usage appears in technical descriptions, historical texts about metalworking, and occasionally in modern contexts when discussing the aesthetic or protective oxide layers on metals, though it remains a relatively specialized character in everyday language.