Facts About Iridium and Thallium
Interesting Facts
- Iridium element occurs as natural alloys of Platinum and Osmium.
- Iridium element is known as the most corrosion resistance metal .
  
- Compounds of Thallium metal are highly Toxic.
- Thallium metal is being suspected as a human carcinogen.
  
Sources
Found in Minerals, Mining, Ores of Minerals
  
Found As a By-product, Ores of metals, Ores of Minerals
  
History
  
  
Who Discovered
Smithson Tennant
  
William Crookes
  
Discovery
In 1803
  
In 1861
  
Abundance
  
  
Abundance In Sun
~0.0000002 %
  
25
~0.0000001 %
  
26
Abundance In Earth's Crust
Abundance In Oceans
Not Available