The Rocks and Minerals of Occoneechee Mountain -

Sericite Phyllite

Example of sericite phyllite from active pyrophyllite mine. Rock is interpreted to be a hydrothermally altered lithic tuff. Black colored zone with white spots is interpreted as a relict clast of plagioclase porphyritic dacite.

Metal tip of mechanical pencil is approximately 2 cm long.

Sericite Phyllite 1
Same sample from above.
Sericite Phyllite 2
Same sample as above looking perpendicular to metamorphic foliation. Foliation cuts through relict clast.
Sericite Phyllite 3

Please remember that rock and mineral collecting is STRICTLY PROHIBITTED in Eno River State Park!



Want to learn more about the geology of the Eno River area?

You may be interested in A Geologic Adventure Along the Eno River - A richly illustrated publication from the North Carolina Geological Survey.