Commodity Code


alt label
trap rock more like this
definition Commercial basalt and traprock includes igneous rocks that are too fine grained to be termed “black granite.” This category includes extrusive igneous rocks, such as andesite, basalt, or dacite, and intrusive igneous rocks, such as amphibolites, diabase, diorites, fine-grained gabbros, peridotites and pyroxenites. more like this
notation more like this
Bas more like this
source more like this
broader dimension stone
narrower basalt
in scheme commodity code
is primary topic of basalt