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Cashel Rock, near CregganTyrone
Cashel Rock, near Creggan, Co.Tyrone, June 1997
Summary Full report
Site Type: Inland exposure
Site Status: PASSI
Grid Reference: D25893801
Rock Age: Ordovician
Rock Name: Tyrone Volcanic Group
Rock Type: Breccia, Rhyolite
Minerals: Chalcopyrite, Galena, Pyrite, Sphalerite, Covellite
Other interest: mineral vein, stockwork, No Data

Summary of site:

This is an area of small outcrops of a mineralised breccia in Ordovician volcanic rocks. Sulphide minerals, probably galena and zinc blende occur, best seen in loose boulders.

Threats are possible agricultural improvement and, due to the limited occurrence, collecting.

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