Facts About Iridium and Gadolinium
Interesting Facts
- Iridium element occurs as natural alloys of Platinum and Osmium.
- Iridium element is known as the most corrosion resistance metal .
  
- Gadolinium is not found free in nature, hence it is not a native metal.
- Gadolinium metal found in minerals like Monazite and Bastnaesite.
  
Sources
Found in Minerals, Mining, Ores of Minerals
  
Found in Minerals, Mining
  
History
  
  
Who Discovered
Smithson Tennant
  
Jean Charles Galissard de Marignac
  
Discovery
In 1803
  
In 1880
  
Abundance
  
  
Abundance In Sun
~0.0000002 %
  
25
~0.0000002 %
  
25
Abundance In Earth's Crust
Abundance In Oceans
Not Available