Metamorphic Rock Specimen - Natural Geological Formation #178644 (License: Personal Use)

The specimen features prominent foliation with alternating light and dark mineral bands-rich in biotite, muscovite, and quartz-indicative of regional metamorphism. Its rough, irregular surface preserves natural fracture patterns and subtle luster from platy silicate minerals. The interlayered texture suggests intermediate to high-grade metamorphic conditions.

Used in geology education, museum exhibits, or mineral identification guides; targets students, educators, collectors, and hobbyists seeking visual reference for metamorphic rock classification and formation processes.