Quartz schist and gneiss

Dark-tan- to rusty-tan-weathering, garnet-muscovite-biotite-quartz-plagioclase gneiss and rusty schist, locally containing abundant chloritized garnet; lustrous yellowish-grayish-green phyllonitic retrograde varieties contain chloritoid-chlorite and relict garnet (red dot overprint). Part of the aluminous schists and gneisses of the Washington Gneiss and Wilcox Formation and related rocks. Mount Holly Complex paragneiss. Rocks of the Green Mountain and Lincoln Mountain massifs and eastern domes.
State Vermont
Name Quartz schist and gneiss
Geologic age Middle Mesoproterozoic
Lithologic constituents
Major
Metamorphic > Schist > Quartz-feldspar-schistDark-tan- to rusty-tan-weathering, garnet-muscovite-biotite-quartz-plagioclase gneiss and rusty schist, locally containing abundant chloritized garnet.
Metamorphic > Metasedimentary > ParagneissDark-tan- to rusty-tan-weathering, garnet-muscovite-biotite-quartz-plagioclase gneiss and rusty schist, locally containing abundant chloritized garnet.
Minor
Metamorphic > Metasedimentary > Metaclastic > PhylliteLustrous yellowish-grayish-green phyllonitic retrograde varieties contain chloritoid-chlorite and relict garnet.
References
NGMDB product
Counties Addison - Bennington - Rutland - Windham - Windsor