Simple Lithology

foid bearing syenite

definition Syenitic rock that contains between 0 and 10 percent feldspathoid mineral and no quartz in the QAPF fraction. Defined modally in QAPF Field 7'. more like this
source LeMaitre et al. 2002 more like this
broader syenitic rock
narrower foid bearing syenite
in scheme simplelithology
is primary topic of foid bearing syenite