Earth Science Conservation Review
| Pollaphuca, Mourne Mountains | Down |
| Site Type: | Mountan outcrop |
| Site Status: | local interest |
| Grid Reference: | J310283 |
| Google maps: | 54.1874,-5.99321 |
| Rocks | |
|---|---|
| Rock Age: | Tertiary (Eocene, Palaeocene) |
| Rock Name: | Granite, Mourne Mountains Granites |
| Rock Type: | Granite, Greisen |
| Interest | |
| Minerals: | Cassiterite, Epidote |
| Other interest: | mineral vein |
Summary of site:
In this area there are veins in the granite formed when hot, mineral-rich solutions circulated through the rock after it had solidified. The veins are of quartz and white mica (greisens) and contain epidote, an apple-green mineral (a hydrated calcium aluminosilicate) and also cassiterite, a tin oxide. This is the only known occurrence of cassiterite in Northern Ireland.
| Enlander, I., Dempster, M. & Doughty, P., 2024. Pollaphuca, Mourne Mountains, County Down, site summary. [In] Earth Science Conservation Review. https://www.habitas.org.uk/escr/summary.php?item=555. Accessed on 2024-12-26 |
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