SISSVoc Default

rare earth element

http://resource.geosciml.org/classifier/cgi/commodity-code/rare-earth-element

alt label
TREE more like this
definition As defined by IUPAC, a rare earth element (REE) or rare earth metal is one of a set of seventeen chemical elements in the periodic table, specifically the fifteen lanthanides plus scandium and yttrium. Scandium and yttrium are considered rare earth elements because they tend to occur in the same ore deposits as the lanthanides and exhibit similar chemical properties. more like this
narrower
http://resource.geosciml.org/classifier/cgi/commodity-code/hree original
broader rare-earth-element original
http://resource.geosciml.org/classifier/cgi/commodity-code/lree original
broader rare-earth-element original
notation
02.01.03 more like this
REE more like this
source http://en.wikipedia.org/wiki/Rare_earth_element more like this
type
Resource original
Concept original
broader
http://resource.geosciml.org/classifier/cgi/commodity-code/metal original
narrower rare-earth-element original
in scheme commodity-code original
is primary topic of rare-earth-element