Trondhjemite

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What Wikipedia says

Trondhjemites are leucotonalites, a variety of leucocratic tonalite in which the modal mineralogy mostly consists of plagioclase in the form of albite to andesine, >20% quartz, and <10% alkali feldspar. Trondhjemites that occur in the oceanic crust or in ophiolites are usually called plagiogranites.

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

Image: Chingo Meaopim, CC BY-SA 4.0, via Wikimedia Commons.