Informally named schist of Hulett, part of parautochthonous assemblage in axial area of Austell-Frolona anticlinorium. Named for Hulett, Carroll Co., western GA; exposures are seen in and around the town. Typical exposures may be seen along unnamed, unpaved road running south-southeast from GA Hwy 166 about 320 m southeast of Hulett for approximately 2130 m south of GA Hwy 166. Consists of biotite-muscovite schist that contains small red garnets in many outcrops and lacks garnets in nearly as many outcrops; also persistent is presence of closely spaced schistosity planes that give rock a finely cleaved appearance. Underlies Bill Arp Formation but nature of contact is not known. Also unknown as to whether this schist belongs with either Frolona or Bill Arp Formations; therefore the schist is given informal status until further mapping can better define its assignment. Age is Late Proterozoic to Middle Ordovician.

Source: GNU records (USGS DDS-6; Reston GNULEX).