Interlayered; minor layers and lenses of hornblende gneiss, metagabbro, mica schist, and granitic rock.
Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite.
Inequigranular, locally abundant potassic feldspar and garnet; interlayered and gradational with calc-silicate rock, sillimanite-mica schist, mica schist, and amphibolite. Contains small masses of granitic rock.
Megacrystic to equigranular. High Shoals Granite.
Quartz-sericite schist with metavolcanic rock, quartz-pebble metaconglomerate, kyanite-sillimanite quartzite, and garnet-quartz rock.
Sericite schist, locally with graphite, phyllite with sericite quartzite, banded marble, amphibolite, and minor calc-silicate rock.
Equigranular to megacrystic, foliated to massive. Includes Toluca Granite.
Strongly foliated; minor layers of amphibolite and muscovite schist.
Massive to strongly foliated; minor layers of amphibolite and muscovite schist.
Poorly layered to massive; megacrysts of microcline and quartz; local mica schist, amphibolite, and biotite gneiss
Metamorphosed dunite, local peridotite, serpentinite, soapstone, and other ultramafic rock. Only larger bodies shown.
Locally pinkish gray, massive to weakly foliated; contains hornblende.