Moulton Diorite

Dark-gray, medium-grained metadiorite composed mainly of secondary minerals such as saussuritized plagioclase, amphibole, epidote, chlorite, and calcite. Part of the Bronson Hill arch intrusive rocks.
State Vermont
Name Moulton Diorite
Geologic age Early Devonian
Lithologic constituents
Major
Metamorphic > Metaigneous > Metaintrusive > MetadioriteDark-gray, medium-grained metadiorite composed mainly of secondary minerals such as saussuritized plagioclase, amphibole, epidote, chlorite, and calcite.
References
NGMDB product