augengneiss (English, noun)
expansion: augengneiss (plural augengneisses)
Senses:
glosses: A type of metamorphic rock characterized by large, lenticular mineral grains or crystal aggregates that resemble "eyes" (called augen in German) embedded within a finer-grained matrix. These "eyes" are usually feldspar or quartz grains that have been deformed during metamorphism.
Forms:
form: augengneisses
tags: plural