Leucogranite is a light-colored, granitic, igneous rock containing almost no dark minerals.

[1] The leucogranite magmas are interpreted to have been derived by partial melting of pelitic rocks in the upper portions of thickened crust.

[1] Mont Saint-Michel in Normandy, France is made of leucogranite, which solidified from an underground intrusion of molten magma about 525 million years ago during the Cambrian period.

[3] A study of sodium-rich quartz-alkali feldspar—biotite gneiss granulite facies terrane in the Kerala Khondalite Belt near Manali in south India found that in situ leucosomes (light colored segregations) within the gneiss showed the development of garnet replacing the dark biotite.

Strontium isotope ratios of the leucogranite intrusives are distinct from that of the gneiss and associated leucosomes.