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Facts About Thulium and Gadolinium


Facts About Gadolinium and Thulium


Facts

Interesting Facts
  • Thulium metal can resist corrosion due to dry air .
  • Only Tm-169 isotope of Thulium metal occur naturally.
  
  • Gadolinium is not found free in nature, hence it is not a native metal.
  • Gadolinium metal found in minerals like Monazite and Bastnaesite.
  

Sources
Found in Minerals, Mining, Ores of Minerals   
Found in Minerals, Mining   

History
  
  

Who Discovered
Per Teodor Cleve   
Jean Charles Galissard de Marignac   

Discovery
In 1879   
In 1880   

Abundance
  
  

Abundance In Universe
1 * 10-8 %   
30
2 * 10-7 %   
22

Abundance In Sun
~0.00000002 %   
28
~0.0000002 %   
25

Abundance In Meteorites
0.00 %   
99+
0.00 %   
34

Abundance In Earth's Crust
0.00 %   
99+
0.00 %   
30

Abundance In Oceans
0.00 %   
99+
0.00 %   
38

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