Commodity Code

nepheline syenite

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

definition In the IUGS classification, the variety of foid syenite in which nepheline is the most abundant feldspathoid. - AGI - Glossary of geology more like this
notation
01.01.04.03 more like this
NephS more like this
source This vocabulary more like this
type
Resource
Concept
broader industrial rock
narrower nepheline syenite
in scheme commodity code
is primary topic of nepheline syenite