Mica Schist/ Gneiss/ Amphibolite
Mylonite and ultramylonite
Hornblende Gneiss/ Amphibolite/ Granite Gneiss
Mica Schist/ Gneiss
Biotite Gneiss/ Amphibolite
Hornblende Gneiss/ Amphibolite
Granitic Gneiss undifferentiated
Granite Gneiss/ Granite
Flinty Crush Rock
Fine-grained biotite-oligoclase gneiss intermixed with coarse-grained muscovite-biotite schist; locally contains muscovite-rich pegmatite.
Layered and massive amphibolite; locally includes hornblende migmatite and ultramafic pods.
Blastomylonite, mylonite gneiss, locally includes mylonite schist and mylonite quartzite in Towaliga fault zone.
Muscovite-quartz schist; locally contains biotite-garnet-muscovite schist, many layers conatin sillimanite (northeast of Mount Jefferson, Lee County); kyanite (west of Mount Jefferson); locally muscovite-rich schist and quartzite common.
Feldspathic biotite-hornblende gneiss with thin layers of amphibolite, calc-silicate rock, garnet quartzite, and muscovite schist; locally rich in manganese.
Leucocratic quartz-rich quartz diorite pencil gneiss.
Ultramafic rock including enstatite pyroxenite, layered actinolite-tremolite amphibolite altered locally to serpentine, anthophyllite, and talc; metanorite; metagabbro; hornblendite; garnet-hornblendite, and massive amphibolite.
Interlayered muscovite-quartz schist and quartzite, locally contains garnet, sillimanite and graphite; commonly intensely shared.
Mylonite and blastomylonite; contains minor ultramylonite, mylonite schist, and mylonite gneiss.