Facts About Platinum and Hafnium
Interesting Facts
- Platinum is the rarest metal from the Precious metal categories..
- Commercially Platinum is produced as a byproduct in ores of nickel.
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
Sources
Mining, Ores of metals, Ores of Minerals
By-product Zirconium Refining
Who Discovered
Antonio de Ulloa
Dirk Coster and George de Hevesy
Discovery
In 1735
In 1922
Abundance In Earth's Crust
Abundance In Oceans
Not Available