Commodity Code

precious metal

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

definition A precious metal is a rare, naturally occurring metallic chemical element of high economic value. Chemically, the precious metals tend to be less reactive than most elements. They are usually ductile and have a high lustre. Historically, precious metals were important as currency but are now regarded mainly as investment and industrial commodities. Gold, silver, platinum, and palladium each have an ISO 4217 currency code. The best-known precious metals are the coinage metals, gold and silver. While both have industrial uses, they are better known for their uses in art, jewellery and coinage. Other precious metals include the platinum group metals: ruthenium, rhodium, palladium, osmium, iridium, and platinum, of which platinum is the most widely traded. more like this
narrower gold
broader precious metal
platinum group
broader precious metal
silver
broader precious metal
notation
02.01.02 more like this
PrMe more like this
source http://en.wikipedia.org/wiki/Precious_metal more like this
type
Resource
Concept
broader metal
narrower precious metal
in scheme commodity code
is primary topic of precious metal