Facts About Strontium and Ruthenium
Interesting Facts
- Strontium element is softer than Calcium.
- Silvery Strontium turns yellow, if exposed to air.
  
- Ruthenium element has been extracted from used nuclear fuel.
- Ruthenium metal also produces as a by-product of the Nickel mining.
  
Sources
Found in Minerals, Mining, Ores of Minerals
  
By-product of Nickel Refining, Found in Minerals, Mining
  
History
  
  
Who Discovered
William Cruickshank
  
Karl Ernst Claus
  
Discovery
In 1787
  
In 1844
  
Abundance
  
  
Abundance In Sun
~0.000005 %
  
15
~0.0000005 %
  
22
Abundance In Earth's Crust
Abundance In Humans
Not Available