orthoamphibolite

English

Etymology

ortho- +‎ amphibolite

Noun

orthoamphibolite (plural orthoamphibolites)

1. (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