Facts About Ruthenium and Gadolinium
Interesting Facts
- Ruthenium element has been extracted from used nuclear fuel.
- Ruthenium metal also produces as a by-product of the Nickel mining.
  
- Gadolinium is not found free in nature, hence it is not a native metal.
- Gadolinium metal found in minerals like Monazite and Bastnaesite.
  
Sources
By-product of Nickel Refining, Found in Minerals, Mining
  
Found in Minerals, Mining
  
History
  
  
Who Discovered
Karl Ernst Claus
  
Jean Charles Galissard de Marignac
  
Discovery
In 1844
  
In 1880
  
Abundance
  
  
Abundance In Sun
~0.0000005 %
  
22
~0.0000002 %
  
25
Abundance In Earth's Crust