GoldDolfrwnog Mine, Ganllwyd, Dolgellau Gold Belt, Gwynedd, Wales, UK
Photo: MAD minerals UK Grid Reference: SH740250
Latitude: 52°48'26"N
Longitude: 3°52'10"W
This location covers about a square mile of forest and rough country in the general area SH7425.
The pattern of the lodes is complex and over 30 adits and shafts are marked on the OS map. The most important lodes course northeast and southwest for about 900 yards and occur at surface in the Pen Rhos beds. Ore from these lodes carried chalcopyrite, pyrite and arsenopyrite in a quartz-calcite gangue. To the north another major lode striking in a more easterly direction carried gold in association with pyrite and chalcopyrite.
Perhaps the most interesting feature of the area is the "Turf Copper mine", where an accumulation of peat was found to contain high values of copper (some in the native state), with some being so rich that it was sent to Swansea for smenting in the condition that it was dug! Peat carrying less than two and a half percent copper was not considered worth extracting.
The total known output was around 1750 tons of copper ore from the "Turf Mine" between 1824-47, and 342 tons of gold ore giving 183 ounces of gold between 1854-65.
ref: Goldmining in Western Merioneth, T. A. Morrison (undated)
Mineral List
7 entries listed. 7 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 Locality Search
