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!

 

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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.