Platinum character

鉑 means platinum. In Chinese writing, Pt is the element's chemical symbol, while 鉑 is the character used in terms such as 鉑金. The character also has an older sense: a thin sheet of metal.

Medical writing from China's Song dynasty, a period in Chinese history, uses 金鉑 for gold leaf or foil. Japanese scientific writing used 白金 for platinum by 1822; a Chinese chemistry text listed 白金 (鉑) for it in 1868. These records show an older foil sense alongside the later platinum use.

鉑金 or 白金: which one means platinum?

鉑金 is clearer on a jewelry label. 白金 is also an established Chinese name for platinum, so the term can be confused with white gold in translation. Hong Kong's 2008 trade-description amendment uses 白色黃金 for white gold and 白金 or 鉑金 for platinum.

If someone sends bare 鉑, read it as a material or product cue: it names a metal, not a mood.