Cefn Coed Colliery, Crynant, Neath Port Talbot, Wales, UKi
| Regional Level Types | |
|---|---|
| Cefn Coed Colliery | Colliery (Abandoned) |
| Crynant | Community |
| Neath Port Talbot | County Borough |
| Wales | Country |
| UK | Country |
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Latitude & Longitude (WGS84):
51° 42' 53'' North , 3° 45' 32'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SN785033
Type:
Colliery (Abandoned) - last checked 2020
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Crynant | 1,602 (2017) | 1.7km |
| Resolven | 2,068 (2017) | 4.2km |
| Ystalyfera | 10,218 (2011) | 6.0km |
| Seven Sisters | 2,123 (2017) | 6.5km |
| Neath | 46,126 (2011) | 6.5km |
Mindat Locality ID:
29823
Long-form identifier:
mindat:1:2:29823:7
GUID (UUID V4):
7bebdcf8-2cd6-4fac-9549-30478e1b6292
Other/historical names associated with this locality:
West Glamorgan; Glamorgan
Brammallite was identified by X-ray diffraction by the Natural History Museum, London, from the Dulais Seam at Cefn Coed Colliery (X2424). The specimen has not been catalogued into the NHM Collection and no further details are known.
Apart from the type locality, Llandebie, Cefn Coed Colliery is the only other Welsh locality for brammallite.
Cefn Coed Colliery, an anthracite pit, was opened by the Llwynonn Colliery Company during the 1920's and was taken over by the Amalgamated Anthracite Collieries Ltd in 1928. By 1945 there were 908 men employed.
Production ceased in 1968, but the shafts were kept open to provide access and ventilation for the New Blaenant drift mine, which occupied the same site.
The colliery is now a mining museum.
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
2 valid minerals.
Detailed Mineral List:
| β Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| β Paragonite Formula: NaAl2(AlSi3O10)(OH)2 |
| β Paragonite var. Brammallite |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| β | Paragonite var. Brammallite | 9.EC.15 | NaAl2(AlSi3O10)(OH)2 |
| β | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| β | Paragonite | 9.EC.15 | NaAl2(AlSi3O10)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | β Paragonite | NaAl2(AlSi3O10)(OH)2 |
| O | Oxygen | |
| O | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | β Paragonite | NaAl2(AlSi3O10)(OH)2 |
| Na | Sodium | |
| Na | β Paragonite | NaAl2(AlSi3O10)(OH)2 |
| Al | Aluminium | |
| Al | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | β Paragonite | NaAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | β Paragonite | NaAl2(AlSi3O10)(OH)2 |
| K | Potassium | |
| K | β Muscovite | KAl2(AlSi3O10)(OH)2 |
Other Regions, Features and Areas containing this locality
British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
UK
- Wales
- Cambrian MountainsMountain Range
- Glamorgan
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