Folded Schist: Small-Scale folds accentuated by glittering mica crystals

A medium-grained banded (schist rock segregated into distinct bands showing schistosity, a wavy foliation, caused by the rock splitting along planes of weakness. The mica crystals emphasize the folds. A schist is a metamorphic rock in which the medium grains can be seen with a hand lens and are orientated so it can be split into flakes or plates.