orthoamphibolite
English
Etymology
ortho- + amphibolite
Noun
orthoamphibolite (plural orthoamphibolites)
- (petrology) Metamorphic rock composed mostly of amphibole, plagioclase, with lesser amounts of epidote, zoisite, chlorite, quartz, titanite, and accessory leucoxene, ilmenite and magnetite derived from an igneous rock.
Alternative forms
- ortho-amphibolite