Facts About Calcium and Niobium
Interesting Facts
- Calcium ranks 5th rank in the list of earth’s abundance Percentage.
- It is found in the compound state.
- Gypsum or calcium sulfate is used as plaster and plaster of paris.
  
- Niobium metal was used to get called Columbium in past.
- Niobium metal found freely in nature (abundance).
  
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
  
By-product of Tin Extraction, Found in Minerals, Mining, Ores of Minerals
  
History
  
  
Who Discovered
Humphry Davy
  
Charles Hatchett
  
Discovery
In 1808
  
In 1801
  
Abundance
  
  
Abundance In Sun
~0.0000004 %
  
23
Abundance In Earth's Crust
Abundance In Humans
Not Available