Commodity Code

thorium

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

definition Thorium is a naturally occurring radioactive chemical element with the symbol Th and atomic number 90. more like this
notation
02.01.26 more like this
Th more like this
source http://en.wikipedia.org/wiki/Thorium more like this
type
Resource
Concept
broader metal
narrower thorium
in scheme commodity code
is primary topic of thorium