Facts About Zirconium and Hafnium
Interesting Facts
- Zirconium metal can resist to weak acids.
- Zirconium metal reacts with oxygen and nitrogen in the atmosphere.
  
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
  
Sources
Found in Minerals, Mining, Ores of Minerals
  
By-product Zirconium Refining
  
History
  
  
Who Discovered
Martin Heinrich Klaproth
  
Dirk Coster and George de Hevesy
  
Discovery
In 1789
  
In 1922
  
Abundance
  
  
Abundance In Sun
~0.000004 %
  
16
~0.0000001 %
  
26
Abundance In Earth's Crust
Abundance In Humans
Not Available