Earth Science Conservation Review

Summary Full report
Cashel Rock - MineralogyTyrone
Cashel Rock, near Creggan, Co.Tyrone, June 1997
Cashel Rock, near Creggan, Co.Tyrone, June 1997: outcrop.
Cashel Rock, near Creggan, Co.Tyrone, June 1997: boulders.
Site Type: Inland exposure
Site Status: ASSI
Grid Reference: H589801
Google maps: 54.66602,-7.08716
Rocks
Rock Age: Ordovician
Rock Name: Tyrone Volcanic Group
Rock Type: Breccia, Rhyolite
Interest
Minerals: Chalcopyrite, Galena, Pyrite, Sphalerite, Covellite
Other interest: mineral vein, stockwork

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.

 Enlander, I., Dempster, M. & Doughty, P., 2024. Cashel Rock - Mineralogy, County Tyrone, site summary. [In] Earth Science Conservation Review.
https://www.habitas.org.uk/escr/summary.php?item=523. Accessed on 2024-12-26

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