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Osmium is extremely rare and expensive. It is the densest chemical element, rivals diamond as being the least compressible of all known substances & has a distinctive 'pong' according to Allan Blackman in ep 57 of Elemental.
Osmium is an extremely rare and expensive transition metal, and only a few hundred kilograms are produced annually.
It is the densest chemical element, and rivals diamond as being the least compressible of all known substances.
It doesn't have many uses, although its hardness makes it useful in fountain pen nibs and clock bearings.
The name osmium comes from the Grek osme, meaning 'smell'. Osmium tetroxide has a distinctive 'pong' according to Allan Blackman, in ep 57 of Elemental.