Latitude: 53°10'0"N
Longitude: 8°22'28"W
While "Tynaugh" may be found on some labels and/or in some references, it is a mis-spelling and should not be used.
A giant, polymetallic deposit which produced nearly a million tonnes of lead, zinc and copper before it closed in 1982. Much of the ore was oxidised and vast quantities of museum-grade azurite, malachite, cerussite, native copper etc. were processed before collectors finally realised what was happening. By then, most was gone.
The open-cast is now flooded and the tips landscaped with a gas power station having been recently construction on part of the site.
The few patches which the landscapers have missed have been prolific. Whilst the large, showy pieces are long gone, the site remains a micromounters paradise. Over 100 species have so far been found, many of them rare arsenates, making this locality one of international importance.
The bulk of the spoil still remains, untouched by recent construction works however it has been largely grassed over during site rehabilitation works. The crusher area (which had been one of the most prolific localities) are now completely gone and have been concreted over.
One should note that Tynagh Energy only own the land on which the power plant is situated and it completely concreted.
The remainder of the site, which is of interest to collectors, is on Priority Drilling's land.
References
- Economic Geology and the Bulletin of the Society of Economic Geologists 60 (1965) 1218-1237.
- Transactions of the Institution of Mining and Metallurgy, Section B: Applied Earth Science 84 (1975) B128-B133.
- Geologische Rundschau 69 (1980) 361-383.
- Economic Geology 76 (1981) 27-55.
- Transactions of the Institution of Mining and Metallurgy, Section B: Applied Earth Science 90 (1981) B115-B119.
- Nature 313 (1985) 128-31.
- European Journal of Mineralogy 4 (1992) 921-931.
- Economic Geology 97 (2002) 471-480.
- Mineral. Rec.: 20(5): 396.
External Links
http://maps.epa.ie/MineDocs/Appendix%205%20Site%20Reports/Tynagh/Tynagh%20District%20Report.pdf - EPA Report on Tynagh mine
Mineral List
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