Log In
Nantymwyn Mine (Cerrigmeyn Mine), Rhandirmwyn, Llandovery, Carmarthenshire, Wales, UKi
| Regional Level Types | |
|---|---|
| Nantymwyn Mine (Cerrigmeyn Mine) | Mine |
| Rhandirmwyn | Village |
| Llandovery | Town |
| Carmarthenshire | County |
| Wales | Country |
| UK | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
52° 5' 6'' North , 3° 46' 13'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SN787445
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Llanwrtyd Wells | 630 (2017) | 9.3km |
| Llandovery | 2,065 (2017) | 10.3km |
| Llanwrda | 287 (2017) | 14.8km |
| Llangadog | 650 (2017) | 18.1km |
| Tregaron | 1,213 (2017) | 18.6km |
Other/historical names associated with this locality:
Dyfed
A large mine by British standards, which developed a series of fault/veins west of Rhandirmwyn village.
The first recorded working was around 1747, but the veins are thought to have been worked long before this (possibly during Roman times, see http://de.wikipedia.org/wiki/Dolaucothi-Goldminen). There is a referance of the mines at Rhandirmwyn paying a "royalty" of one/eleventh on ore produced about 1304.
Nantymwyn is recorded as being in full production towards the end of the 18th centry, with a yearly output of 4000 tons. From the early 19th centry the mine was intermittently worked up to 1830. 3 years later the mine was back at work, and continued to be so untill 1902.
There were abortive attemps to reopen the mine in 1915, 1923, and 1930-32.
The mine was developed by many shafts and old levels including two boat levels, one 55m above the other. The deepest shaft, Angred shaft, was sunk to a depth of 65m below the lower boat level, or a total depth from surface of 210m.
Recorded output:
Estimated to have been 100000 tons of lead ore from 1770.
529 tons of zinc ore.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Baryte Formula: BaSO4 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Cerussite Formula: PbCO3 Description: White and creamy xls to 3mm+. |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Erythrite Formula: Co3(AsO4)2 · 8H2O Description: Tiny pale pink xls in small quartz cavitys. References: |
| ⓘ Galena Formula: PbS |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyromorphite Formula: Pb5(PO4)3Cl Description: Darkish green xls to 2mm encrusting quartz matrix |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Cerussite | 5.AB.15 | PbCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Pyromorphite | 8.BN.05 | Pb5(PO4)3Cl |
| ⓘ | Erythrite | 8.CE.40 | Co3(AsO4)2 · 8H2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Cerussite | PbCO3 |
| O | Oxygen | |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Cerussite | PbCO3 |
| O | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| O | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| P | Phosphorus | |
| P | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Cl | Chlorine | |
| Cl | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Co | Cobalt | |
| Co | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Erythrite | Co3(AsO4)2 · 8H2O |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Pb | Lead | |
| Pb | ⓘ Cerussite | PbCO3 |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Pyromorphite | Pb5(PO4)3Cl |
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
This page 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.
Nantymwyn Mine, Rhandirmwyn, Llandovery, Carmarthenshire, Wales, UK