Tower Hill Quartzite

Quartzite and phyllite.
State Massachusetts
Name Tower Hill Quartzite
Geologic age Silurian
Lithologic constituents
Major
Metamorphic > Metasedimentary > Metaclastic > Quartzite
Metamorphic > Metasedimentary > Metaclastic > Phyllite
Comments Part of Merrimack Belt (Silurian, Devonian and Pennsylvanian Rocks)
References
NGMDB product
Counties Middlesex - Worcester