
145
MELTING POINT
BOILING POINT
DENSITY
Transition
metal
Industrial
uses
Solid
OUR MOST RECENT
NATURAL FIND
Rhenium is our most recent natural find.
It has the second-highest melting point,
just below that of tungsten. This makes
it ideal for high-temperature measuring
equipment and rocket nozzles.
DISCOVERY YEAR: 1925
MELTING POINT
BOILING POINT
DENSITY
Transition
metal
Specialist
uses
Solid
THE HEAVIEST SUMO
OF THEM ALL
The densest element and the heaviest
metal, osmium becomes very abrasion-
and rust-resistant when alloyed with
iridium, ruthenium, and platinum. Its
durability suits it for fountain pen tips.
DISCOVERY YEAR: 1803