Gneiss is a common metamorphic rock formed by high temperatures and pressures and known for its distinct foliation of alternating dark and light bands.
Gneiss 3D Model by Rutgers University Geology Museum

Gneiss is a common metamorphic rock formed by high temperatures and pressures and known for its distinct foliation of alternating dark and light bands.
Gneiss 3D Model by Rutgers University Geology Museum