Garnet, staurolite, kyanite, or sillimanite occur locally; lenses and layers of quartz schist, micaceous quartzite, calc-silicate rock, biotite gneiss, amphibolite, and phyllite.
Interlayered; minor layers and lenses of hornblende gneiss, metagabbro, mica schist, and granitic rock.
Megacrystic to equigranular. High Shoals Granite.
Sericite schist, locally with graphite, phyllite with sericite quartzite, banded marble, amphibolite, and minor calc-silicate rock.
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.
Foliated to massive.
Quartz-sericite schist with metavolcanic rock, quartz-pebble metaconglomerate, kyanite-sillimanite quartzite, and garnet-quartz rock.
Locally pinkish gray, massive to weakly foliated; contains hornblende.
Massive to weakly foliated; contains pegmatites, lithium-bearing on east side.
Massive to strongly foliated; minor layers of amphibolite and muscovite schist.
Equigranular to megacrystic, foliated to massive. Includes Toluca Granite.
Barber, Concord, Farmington, Mecklenburg, and Weddington intrusives.