gneiss
Gneiss (noun) means Gneiss is a common metamorphic rock marked with bands or streaks of different minerals but lacking the flaky, splitting texture of schist. Example: “The cliff face was made of grey gneiss with dark bands running through it.”
How to use gneiss
Learner’s notesIn plain EnglishGneiss is a type of banded rock formed by heat and pressure acting on older rock.
Gneiss is a specialist geology term rather than everyday vocabulary.
Remember the silent g by linking the sound to its homophone, nice.
Trace the full origin ↓Fill the gap
Can you complete this real example?
The cliff face was made of grey _____ with dark bands running through it.
Etymology
Gneiss came into English from German Gneis. That German word traces back through Middle High German gneist to Old High German gneisto, both meaning spark.