Charnockite

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What Wikipedia says

Charnockite () is any orthopyroxene-bearing quartz-feldspar rock formed at high temperature and pressure, commonly found in granulite facies’ metamorphic regions, sensu stricto as an endmember of the charnockite series.

Excerpt from the Wikipedia article “Charnockite”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Anders Damberg, Geological Survey of Sweden SGU from Sweden, CC BY-SA 4.0, via Wikimedia Commons.