noun
- a naturally occurring alloy of osmium and iridium, typically containing other platinum group metals
Usage: mineralogy; technical
Examples
- Osmiridium is one of the densest naturally occurring materials on Earth.
- The prospector found small grains of osmiridium in the river sediment.
- Osmiridium deposits are often associated with platinum-bearing rocks.
- The jewelry maker valued osmiridium for its extreme hardness and durability.
- Scientists studied the osmiridium sample to understand platinum group metal formation.
- Mining companies search for osmiridium in areas with ultramafic rock formations.