Everett Formation

Light-green and greenish-gray chlorite-muscovite-albite or chloritoid-rich phyllite. Predominantly dark-gray chloritoid-rich schist in Lenox Mountain.
State Massachusetts
Name Everett Formation
Geologic age Lower Cambrian and Proterozoic Z
Lithologic constituents
Major
Metamorphic > SchistPredominantly dark-gray chloritoid-rich schist in Lenox Mountain.
Metamorphic > Metasedimentary > Metaclastic > Phyllitechlorite-muscovite-albite or chloritoid-rich phyllite
Comments Part of Taconic-Berkshire Zone (Ordovician and Older Rocks); in the Taconic Allochthon
References
NGMDB product
Counties Berkshire