Simple Lithology

diorite

http://resource.geosciml.org/classifier/cgi/lithology/diorite

definition Phaneritic crystalline rock consisting of intermediate plagioclase, commonly with hornblende and often with biotite or augite; colour index M less than 90, sodic plagioclase (An0-An50), no feldspathoid, and between 0 and 5 percent quartz. Includes rocks defined modally in QAPF field 10 as diorite. more like this
source LeMaitre et al. 2002 more like this
type
Resource
Concept
broader dioritic rock
narrower diorite
in scheme simplelithology
is primary topic of diorite