Commodity Code

clay

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

definition Deposits mostly composed of microcrystalline phyllosilicate minerals containing variable amounts of water trapped in the mineral structure. more like this
narrower brick clay
broader clay
fullers earth
broader clay
halloysite
broader clay
kaolin
broader clay
sepiolite
broader clay
white firing clay
broader clay
notation
01.02.10 more like this
Cly more like this
source http://en.wikipedia.org/wiki/Clay more like this
type
Resource
Concept
broader industrial mineral
narrower clay
in scheme commodity code
is primary topic of clay