Rhenium has a uniquely high melting point (3,180°C) and high density (21.04 g/cc).

Does rhenium have a high density?

Rhenium is a precious and rare metal. Its melting point is 3186°C, which is the third highest melting point of all the elements. This, together with the highest boiling point (5596°C), high density (21.03 g/cc) and high hardness and resistance to corrosion and deformation, makes rhenium unique.

What is rhenium hardness?

165. 165. Hardness, Rockwell A (converted from Vickers)