Medium- to dark-gray, medium- to fine-grained mica schist, phyllite, and slate. Mineralogy: (1) quartz + muscovite + magnetite; (2) quartz + muscovite + chlorite + stilpnomelane; (3) quartz + plagioclase + biotite + garnet + magnetite; (4) quartz + biotite + stau ro lite + garnet + magnetite; (5) quartz + biotite + kyanite + garnet + staurolite; chlorite occurs as a secondary mineral. Geophysical signature: isolated magnetic peaks resulting from concentrations of magnetite in the wider belts of mica schist. Although these rocks have been grouped as a single unit following Espenshade and others (1975), mapping in Floyd County (Dietrich, 1959) suggests that the unit includes rocks stratigraphically at the base of the Ashe as well as rocks stratigraphically above the Ashe, coeval in part with the Alligator Back Formation.