Discoverd by D. Coster and G. C. von Hevesey at Copenhagen,
Denmark.
Remarks
Lustrous, silvery, ductile metal. Resists corrosion due to
oxide film, but powdered Hf will burn in air. Unaffected by acids (except
HF) and alkalis. Used in control rods for nuclear reactors; high
temperature alloys and ceramics.
Diagnostic tests:
there are no simple chemical tests for hafnium. Zirconium minerals
commonly contain hafnium. Energy Dispersive
Analysis of X-rays (EDAX) is used for qualitative and quantitative analysis.
References
Emsley, J., 1991; THE ELEMENTS : Sec. Ed.,
Clarendon Press, Oxford, 251 p.
(* - Mineral Name Is Not IMA Approved)
(! - New Dana classification added or changed from Danas New Mineralogy)
(? - IMA Discredited Mineral Species Name)
There are 15 minerals with Hf in the Mineralogy Database.