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Dolfrwnog Mine (incl. Turf Copper Mine), Ganllwyd, Gwynedd, Wales, UKi
| Regional Level Types | |
|---|---|
| Dolfrwnog Mine (incl. Turf Copper Mine) | Mine |
| Ganllwyd | Community |
| Gwynedd | County |
| Wales | Country |
| UK | Country |
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Latitude & Longitude (WGS84):
52° 48' 26'' North , 3° 52' 10'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SH740250
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Dolgellau | 2,688 (2017) | 7.3km |
| Trawsfynydd | 628 (2017) | 11.1km |
| Dyffryn Ardudwy | 1,654 (2012) | 13.5km |
| Tal-y-bont | 1,540 (2017) | 15.4km |
| Llanbedr | 385 (2017) | 15.5km |
Other/historical names associated with this locality:
Merionethshire
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)
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
7 valid minerals.
Detailed Mineral List:
| ⓘ Arsenopyrite Formula: FeAsS |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Native Copper Formula: Cu |
| ⓘ Native Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Native Copper | Cu |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Regions, Features and Areas containing this locality
British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
- AvaloniaVolcanic Arc
EuropeContinent
UK
- Wales
- Cambrian MountainsMountain Range
- Gwynedd
- Snowdonia National ParkNational Park
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Dolfrwnog Mine, Ganllwyd, Gwynedd, Wales, UK