Facts About Chromium and Niobium
Interesting Facts
- Chromium is highly reactive, hence it is not found free in nature.
- Ores of Chromites mineral are the major source of Chromium metal.
- Almost 90% leather tanning is done with the help of chromium.
  
- Niobium metal was used to get called Columbium in past.
- Niobium metal found freely in nature (abundance).
  
Sources
Found in Minerals, Mining, Ores of metals, Ores of Minerals
  
By-product of Tin Extraction, Found in Minerals, Mining, Ores of Minerals
  
History
  
  
Who Discovered
Louis Nicolas Vauquelin
  
Charles Hatchett
  
Discovery
In Between 1797 - 1798
  
In 1801
  
Abundance
  
  
Abundance In Universe
1.5 * 10
-3 %
  
7
Abundance In Sun
~0.0000004 %
  
23
Abundance In Earth's Crust
Abundance In Humans
Not Available