Iridium

:Alternate meaning: Iridium (satellite)

Occurrence

Iridium is found uncombined in nature with platinum and other platinum group metals in alluvial deposits. Naturally occurring iridium alloys include osmiridium and iridiosmium, both of which are mixtures of iridium and osmium. It is recovered commercially as a by-product from nickel mining and processing.

Related Topics:
Alluvial - Osmiridium - Iridiosmium - Nickel

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Iridium is rare on Earth, but relatively common in meteorites.

Related Topics:
Earth - Meteorite

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