Biotite-plagioclase-quartz gneiss and biotite-muscovite schist

Variably interlayered, containing subordinate layers of amphibolite and sillimanite-mica schist
State South Carolina
Name Biotite-plagioclase-quartz gneiss and biotite-muscovite schist
Geologic age Cambrian or Neoproterozoic
Lithologic constituents
Major
Metamorphic > Gneiss > Biotite-gneissBiotite-plagioclase-quartz gneiss
Metamorphic > Schist > Mica-schistincludes both biotite-muscovite schist and sillimanite-mica schist
Minor
Metamorphic > Amphibolite
Comments Western Piedmont, layered and stratified rocks
References
Counties Abbeville - Anderson - Greenville - Oconee - Pickens