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Llechwedd Helyg Mine (Willow Bank Mine), Pen-bont Rhydybeddau, Trefeirig, Ceredigion, Wales, UK

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Latitude & Longitude (WGS84): 52° 26' 38'' North , 3° 56' 16'' West
Latitude & Longitude (decimal): 52.4439981189, -3.9379208161
UK National Grid Reference:SN683847
Other/historical region names associated with this locality:Dyfed; Cardiganshire


Llechwedd Helyg mine, developed a section of the Camdwr fault system, which is recorded as being up to 9 mts wide here. The mine was worked befor 1853, when it was reopened. The mine continued to be worked until 1862, with only 3 tons of lead ore being recorded for this 10 year period.
The mine produced some of mid-Wales best examples of malachite, for a short time from the dumps.

Mineral List


35 valid minerals.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
Mineral and/or Locality  
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