Facts About Iridium and Yttrium
Interesting Facts
- Iridium element occurs as natural alloys of Platinum and Osmium.
- Iridium element is known as the most corrosion resistance metal .
  
- Yttrium Metal is highly toxic.
- Yttrium Metal is highly reactive in nature hence not found free in nature.
  
Sources
Found in Minerals, Mining, Ores of Minerals
  
Found in Minerals, Mining, Ores of Minerals
  
History
  
  
Who Discovered
Smithson Tennant
  
Johan Gadolin
  
Discovery
In 1803
  
In 1794
  
Abundance
  
  
Abundance In Sun
~0.0000002 %
  
25
~0.0000001 %
  
26
Abundance In Earth's Crust
Abundance In Oceans
Not Available