Schist

Schist is a metamorphic rock form characterized by strong foliation so that it is readily split into thin flakes or slabs.

Metamorphic
rock
Texture
Parent
rock
Description
SchistFoliatedShale, granitic and volcanic rocksCoarse-grained micaceous minerals

This example of schist is from Warm Springs, Georgia where a stressed formation produces it along with quartzite and gneiss, two other metamorphic rocks. The formation produces a large warm spring.

The lowest group in the Grand Canyon is referred to as Vishnu Schist The projected age for these rocks is about 1750-1840 Myr.

Examples of metamorphic rock
Index

Reference
Lutgens and Tarbuck
Ch 7
 
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