Osmium was discovered in 1803 by Smithson Tenant. Its name derives from the Greek word "Osme" which means "odor".
Osmium's melting point is at 3045.0 C (3318.15 K, 5513.0 F) and its boiling point is at 5027.0 C (5300.15 K, 9080.6 F).
Osmium is a transition metal that is hard and brittle.
Osmium's color is bluish-white.
Osmium is the densest naturally occurring element.
Osmium is lustrous even when exposed to high temperatures.
Osmium has a very low compressibility.
Osmium is very hard to be worked.
Elemental osmium is very volatile and its compounds are very toxic.
Osmium is the least abundant element in the Earth's crust.
Osmium can be found uncombined in nature and in natural alloys.
Osmium is a byproduct of nickel and copper mining.
The largest deposits of osmium are found in South Africa, Russia, and Canada.
Osmium has six stable isotopes: 184-Os, 187-Os, 188-Os, 189-Os, 190-Os, and 192-Os (the most abundant).
Osmium is used in the tips of fountain pens, instrument pivots, electrical contacts, fingerprint detection, in electron microscopy, as a strong oxidant, in studies of biological materials, and few other very niche applications.