Facts About Niobium and Gadolinium
Interesting Facts
- Niobium metal was used to get called Columbium in past.
- Niobium metal found freely in nature (abundance).
  
- 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 Tin Extraction, Found in Minerals, Mining, Ores of Minerals
  
Found in Minerals, Mining
  
History
  
  
Who Discovered
Charles Hatchett
  
Jean Charles Galissard de Marignac
  
Discovery
In 1801
  
In 1880
  
Abundance
  
  
Abundance In Sun
~0.0000004 %
  
23
~0.0000002 %
  
25
Abundance In Earth's Crust