Commodity Code

tanzanite

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

definition Tanzanite is the blue/purple variety of the mineral zoisite belonging to the epidote group. more like this
notation
01.03.34 more like this
Tanz more like this
source http://en.wikipedia.org/wiki/Tanzanite more like this
type
Resource
Concept
broader gemstones
narrower tanzanite
in scheme commodity code
is primary topic of tanzanite