What does the word "iridium" belong to the five elements?

Gold. The five elements of the character "铱" belong to gold. The character "铱" is not commonly used in names and has a general meaning. Note that when naming, you can't just look at the Chinese characters. The name must be combined with the eight characters to make the name auspicious. Iridium is a silver-white, hard, brittle, and heavy platinum group metal element. Its main valence states are trivalent and tetravalent. It usually exists in iridium-osmium ore as a natural alloy with platinum or osmium. It is resistant to various chemical attacks at room temperature.