Title
Graphitic slate
            Identifier
DUCO-5
            Description
A highly graphitic slate in the Walloomsac slates. Contains pyrite. This rock also contains biotite, chlorite, muscovite, quartz, ilmenite, and pyrite.
The thin section shows large biotite grains, and chlorite muscovite, and quartz. Fluid inclusions are pervasive.
This rock is from the biotite zone of the Barrovian sequence (low-intermediate metamorphism).
            The thin section shows large biotite grains, and chlorite muscovite, and quartz. Fluid inclusions are pervasive.
This rock is from the biotite zone of the Barrovian sequence (low-intermediate metamorphism).
Contributor
Western Minerals
            Is Part Of
<a href="http://geosciencecollections.milne-library.org/collections/show/18">Barrovian Metamorphic Sequence--Dutchess County, New York</a>
            Spatial Coverage
Dutchess Co., NY
            Accrual Method
Purchased from Western Minerals Inc.
            Unit
Barrovian Metamorphic Sequence
            Number of Thin Sections
1