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hafnium

http://resource.geosciml.org/classifier/cgi/commodity-code/hafnium

definition Hafnium is a chemical element with the symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in zirconium minerals. more like this
notation
02.01.12 more like this
Hf more like this
source http://en.wikipedia.org/wiki/Hafnium more like this
type
Resource original
Concept original
broader
http://resource.geosciml.org/classifier/cgi/commodity-code/metal original
narrower hafnium original
in scheme commodity-code original
is primary topic of hafnium