Facts About Rubidium and Gadolinium
Interesting Facts
- Rubidium metal is 16th most common element found in the earth crust.
- Rubidium metal also found in minerals as well as seawater.
  
- Gadolinium is not found free in nature, hence it is not a native metal.
- Gadolinium metal found in minerals like Monazite and Bastnaesite.
  
Sources
Obtained from Lithium Production.
  
Found in Minerals, Mining
  
History
  
  
Who Discovered
Robert Bunsen and Gustav Kirchhoff
  
Jean Charles Galissard de Marignac
  
Discovery
In 1861
  
In 1880
  
Abundance
  
  
Abundance In Sun
~0.000003 %
  
17
~0.0000002 %
  
25
Abundance In Earth's Crust
Abundance In Humans
Not Available