Migmatite is a rock that is a mixture of metamorphic rock and igneous rock. It is created when a metamorphic rock such as gneiss partially melts, and then that melt recrystallizes into an igneous rock, creating a mixture of the unmelted metamorphic part with the recrystallized igneous part. They can also be known as diatexite. Migmatites form unde... Found on http://en.wikipedia.org/wiki/Migmatite
in geology, rock composed of a metamorphic (altered) host material that is streaked or veined with granite rock; the name means `mixed rock.` Such ... [1 related articles] Found on http://www.britannica.com/eb/a-z/m/89
Migmatite is a regional metamorphic rock composed of two pre-existent formations that have combined but may remain distinguishable. A medium to coarse-grained rock, migmatite forms in distinct bands of different colours - mainly green or blacks. Found on http://www.probertencyclopaedia.com/browse/HM.HTM
A rock with both igneous and metamorphic characteristics that shows large crystals and laminar flow structures. Probably formed metamorphically in the presence of water and without melting. Found on http://www.scientificpsychic.com/etc/geology-glossary.html
macroscopically composite rock typically made up of a dark-colored amphibolite or biotite gneiss intimately mixed with a light-colored rock of granite to granodioritic composition. Found on https://www.encyclo.co.uk/local/20132
A composite rock composed of igneous and metamorphic materials, the result of partial melting at the upper limit of metamorphism. Found on https://www.encyclo.co.uk/local/22327