Facts About Holmium and Hafnium
Interesting Facts
- Holmium metal is very soft and malleable.
- Holmium metal is well known for its corrosion resistivity.
- Hafnium metal is highly reactive, hence not found free in nature.
- Hafnium metal as predicated after Mendeleev finished his periodic table.
Sources
Found in Minerals, Mining, Ores of Minerals
By-product Zirconium Refining
Who Discovered
Marc Delafontaine
Dirk Coster and George de Hevesy
Discovery
In 1878
In 1922
Abundance In Sun
~-9999 %
Abundance In Earth's Crust