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Tyddyn Gwladys Mine, Ganllwyd, Gwynedd, Wales, UKi
| Regional Level Types | |
|---|---|
| Tyddyn Gwladys Mine | Mine |
| Ganllwyd | Community |
| Gwynedd | County |
| Wales | Country |
| UK | Country |
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Latitude & Longitude (WGS84):
52° 49' 24'' North , 3° 52' 39'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SH735268
Type:
Kรถppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Dolgellau | 2,688 (2017) | 9.1km |
| Trawsfynydd | 628 (2017) | 9.2km |
| Dyffryn Ardudwy | 1,654 (2012) | 13.6km |
| Llanbedr | 385 (2017) | 15.0km |
| Llan Ffestiniog | 864 (2017) | 15.3km |
Other/historical names associated with this locality:
Merionethshire
A small mine dating from around 1830, Tyddyn Gwladys was first worked as a lead mine, galena is the dominant ore mineral and carries higher silver values than elsewhere in the district although the lode also carries zinc and copper minerals in addition to pyrite, arsenopyrite and some gold.
Tetrahedrite is locally common in polished sections of galena, and occurs as <1 mm) masses intergrown with pyrargyrite, chalcopyrite and rare low-fineness electrum (Mason et al., 2002).
Worked only intermittently, the recorded output is 12 tons of lead in 1848, 9 tons of lead in 1851 and 43 tons of gold ore producing 7 ounces of gold in 1899, the latter being the final year of working.
refs:
Goldmining in Western Merioneth, T. A. Morrison (undated)
The Gold Mines of Merioneth, G.W. Hall (undated)
Mason, J.S., Bevins, R.E. & Alderton, D.H.M., 2002. Ore Mineralogy of the mesothermal gold lodes of the Dolgellau Gold Belt, North Wales. Transactions of the Institution of Mining and Metallurgy (Section B, Applied earth science), 111, B203-B214.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| โ Arsenopyrite Formula: FeAsS |
| โ Chalcopyrite Formula: CuFeS2 References: |
| โ Galena Formula: PbS |
| โ Native Gold Formula: Au |
| โ Native Gold var. Electrum Formula: (Au,Ag) References: |
| โ Pyrargyrite Formula: Ag3SbS3 References: |
| โ Pyrite Formula: FeS2 |
| โ 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| โ | Native Gold var. Electrum | 1.AA.05 | (Au,Ag) |
| โ | 1.AA.05 | Au | |
| Group 2 - Sulphides and Sulfosalts | |||
| โ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| โ | Galena | 2.CD.10 | PbS |
| โ | Pyrite | 2.EB.05a | FeS2 |
| โ | Arsenopyrite | 2.EB.20 | FeAsS |
| โ | Pyrargyrite | 2.GA.05 | Ag3SbS3 |
| โ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | โ Arsenopyrite | FeAsS |
| S | โ Chalcopyrite | CuFeS2 |
| S | โ Galena | PbS |
| S | โ Pyrargyrite | Ag3SbS3 |
| S | โ Pyrite | FeS2 |
| S | โ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Fe | Iron | |
| Fe | โ Arsenopyrite | FeAsS |
| Fe | โ Chalcopyrite | CuFeS2 |
| Fe | โ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | โ Chalcopyrite | CuFeS2 |
| Cu | โ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| As | Arsenic | |
| As | โ Arsenopyrite | FeAsS |
| Ag | Silver | |
| Ag | โ Native Gold var. Electrum | (Au,Ag) |
| Ag | โ Pyrargyrite | Ag3SbS3 |
| Sb | Antimony | |
| Sb | โ Pyrargyrite | Ag3SbS3 |
| Sb | โ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Au | Gold | |
| Au | โ Native Gold var. Electrum | (Au,Ag) |
| Au | โ Native Gold | Au |
| Pb | Lead | |
| Pb | โ Galena | PbS |
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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