Hoosac Formation - garnet biotite schist member

Medium-dark-gray to lustrous silvery-gray garnet-biotite-muscovite-plagioclase-quartz schist and feldspathic garnet schist; associated with CZhs member which it laterally replaces. Eastern flank of the Green Mountain massif and eastern domes.
State Vermont
Name Hoosac Formation - garnet biotite schist member
Geologic age Lower Cambrian and Neoproterozoic
Lithologic constituents
Major
Metamorphic > Schist > Quartz-feldspar-schistMedium-dark-gray to lustrous silvery-gray garnet-biotite-muscovite-plagioclase-quartz schist and feldspathic garnet schist.
References
NGMDB product
Counties Bennington - Windham