Commodity Code

spongolite

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

definition Spongolite is a stone made almost entirely from fossilised sponges. It is light and porous. more like this
notation
01.01.04.09 more like this
Spong more like this
source http://en.wikipedia.org/wiki/Spongolite more like this
type
Resource
Concept
broader industrial rock
narrower spongolite
in scheme commodity code
is primary topic of spongolite