 | | Dickson’s Island, Castleward, Co.Down, June 1997. |
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| Site Type: | Mine (disused), Spoil | | Site Status: | ESCR | | Council area: | Newry, Mourne & Down District Council | | Grid Reference: | J577501 | | Bing maps: | 54.37556,-5.57308 | | Google maps: | 54.37556,-5.57308 | | Rocks |
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| Rock Type: | Greywacke | | Interest |
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| Minerals: | Calcite, Dolomite, Galena, Sphalerite | | Other interest: | hydrothermal vein |
| Summary of site: |
| Dickson’s Island was formerly the site of a small lead/zinc mine, exploiting a hydrothermal vein. Hydrothermal minerals are precipitated from hot brine solutions travelling through voids in rocks such as narrow fractures and faults. The ore minerals in this case were galena (a lead sulphide) and sphalerite (a zinc sulphide). Now only spoil heaps and shafts to the workings remain. |
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