|Latitude & Longitude (WGS84):||53° 1' 5'' North , 9° 5' 25'' West|
|Latitude & Longitude (decimal):||53.01806,-9.09028|
|Other regions containing this locality:||Ireland (island)|
|Köppen climate type:||Cfb : Temperate oceanic climate|
Irish grid ref: R269971
Situated in the midst of one of Europe's best examples of limestone karst scenery, this tiny, Victorian lead mine hosts the most remarkable deposit of smithsonite in the British Isles. Amazingly the sphalerite vein has been completely altered to green, yellow, grey and white botryoidal smithsonite!
Worked on a very small scale from about 1862-1863 a vein varying from about 30-45cm in width was worked by a shallow trench over a distance of about 100m.
All of the smithsonite was originally left in the spoil as a gangue mineral and Russell (1917) states that 3 or 4 tonnes of smithsonite was visible on the spoil! Sadly virtually none remains today as most has been bulldozed down the shaft and whatever scraps were left have been long ago collected...
The colour is due to a little cadmium sulphide (averaging 0.57% Cd).
Little more than a tiny badly weathered spoil heap remains today - nothing remotely comparable to its heyday!
14 valid minerals.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
323.2 - 358.9 Ma
323.2 - 358.9 Ma
|Paleozoic sedimentary rocks|
Age: Mississippian (323.2 - 358.9 Ma)
Lithology: Sedimentary rocks
Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529.