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light rare earth oxide

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

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.[2] 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
notation
02.04.05.08.1 more like this
LREO 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/rare-earth-oxide original
narrower light-rare-earth-oxide original
in scheme commodity-code original
is primary topic of light-rare-earth-oxide