Simple Lithology

pegmatite

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

definition Exceptionally coarse grained crystalline rock with interlocking crystals; most grains are 1cm or more diameter; composition is generally that of granite, but the term may refer to the coarse grained facies of any type of igneous rock;usually found as irregular dikes, lenses, or veins associated with plutons or batholiths. more like this
source Neuendorf et al. 2005 more like this
type
Resource
Concept
broader phaneritic igneous rock
narrower pegmatite
in scheme simplelithology
is primary topic of pegmatite