Pinney Hollow Formation - black phyllite member

Dark-gray to black, sulfidic biotite-plagioclase-quartz schist, commonly interbedded with or adjacent to amphibolite and greenstone member (CZpha); locally is a silvery-gray sulfidic biotite phyllite. Cover rocks of Green Mountain anticlinorium.
State Vermont
Name Pinney Hollow Formation - black phyllite member
Geologic age Cambrian and Neoproterozoic
Lithologic constituents
Major
Metamorphic > Schist > Quartz-feldspar-schistDark-gray to black, sulfidic biotite-plagioclase-quartz schist.
Minor
Metamorphic > Metasedimentary > Metaclastic > PhylliteLocally is a silvery-gray sulfidic biotite phyllite.
References
NGMDB product
Counties Addison - Rutland - Windsor