Caption:
Schist is a metamorphic rock that displays a foliated (folded) texture as a result of intense pressure that causes alignment of platy minerals. Metamorphism, intense heat and pressure, causes the rearranging or recrystallization of components in a rock, to create a new rock with new minerals. These forces also bend and crumple rocks in a characteristic way, well illustrated by the metamorphic rock known as schist.