orthoamphibolite
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English[edit]
Etymology[edit]
Noun[edit]
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.