Migmatite is the result of very high-grade metamorphism & partial melting of gneiss. Migmatite is a half-metamorphic, half-igneous rock with a half-gneiss & half-granite appearance. It has both foliated & crystalline textures. The granite portions of migmatite formed from cooling of partially melted gneiss.
Migmatite (8.1 cm across) - the dark-speckled bands have not melted. The pinkish-orangish-salmon colored bands are granite, formed from cooling of partially melted portions of the original rock.