Simple Lithology

eclogite

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

definition Metamorphic rock composed of 75 percent or more (by volume) omphacite and garnet, both of which are present as major constituents, the amount of neither of them being higher than 75 percent (by volume); the presence of plagioclase precludes classification as an eclogite. more like this
source IUGS SCMR 2007 (http://www.bgs.ac.uk/SCMR/) more like this
type
Resource
Concept
broader metamorphic rock
narrower eclogite
in scheme simplelithology
is primary topic of eclogite