Commodity Code

hematite-gemstone

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

definition Hematite, also spelled as haematite, is the mineral form of iron(III) oxide (Fe2O3), one of several iron oxides. more like this
notation
01.03.15 more like this
HemGe more like this
source http://en.wikipedia.org/wiki/Hematite more like this
type
Resource
Concept
broader gemstones
narrower hematite gemstone
in scheme commodity code
is primary topic of hematite gemstone