Iridium is a hard, silvery metal. It is almost as unreactive as gold. It has a very high density and melting point. Iridium is the most corrosion-resistant material known.

Is iridium a real metal?

Iridium is a chemical element and one of the transition metals on the periodic table. Iridium appears as symbol Ir on the periodic table and has an atomic weight of 192.217 and a density of 22.56 g/cm³, making it the second-densest known element.

Is iridium a metal or metalloid?

A precious, silver-white metal, iridium is hard and brittle, but it becomes ductile and can be worked at a white heat, from 1,200° to 1,500° C (2,200° to 2,700° F). It is one of the densest terrestrial substances. In the massive state the metal is practically insoluble in acids and is not attacked even by aqua regia.