Facts About Holmium and Praseodymium
Interesting Facts
- Holmium metal is very soft and malleable.
- Holmium metal is well known for its corrosion resistivity.
  
- Praseodymium metal is synthetically produced metal.
- Praseodymium is used as possible fuel for radioactive generators.
  
Sources
Found in Minerals, Mining, Ores of Minerals
  
Found in Minerals, Mining, Ores of Minerals
  
History
  
  
Who Discovered
Marc Delafontaine
  
Not Available
  
Discovery
In 1878
  
In 1885
  
Abundance
  
  
Abundance In Sun
~-9999 %
  
~0.0000001 %
  
26
Abundance In Earth's Crust