 | | Rylagh Burn, near Omagh, Co.Tyrone, June 1997: quartz vein in stream. |
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| Site Type: | Stream section | | Site Status: | ESCR | | Council area: | Fermanagh & Omagh District Council | | Grid Reference: | H462780 | | Bing maps: | 54.64848,-7.2843 | | Google maps: | 54.64848,-7.2843 | | Rocks |
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| Rock Age: | Carboniferous, Precambrian | | Rock Name: | Glengawna Formation | | Rock Type: | Schist | | Interest |
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| Minerals: | Arsenopyrite, Gold, Pyrite, Quartz | | Other interest: | fault, hydrothermal vein, fault gouge |
| Summary of site: |
| Veins bearing arsenopyrite, iron arsenic sulphide, are present in the bed of the burn. It is commonly associated with other sulphide minerals and gold and was deposited high to medium temperature brines circulating through rock cavities. Arsenopyrite is the commonest ore of arsenic, an element used in dyeing, in the treatment of leather and for pest control. |
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