Llandybie (Llandebie), Carmarthenshire, Wales, UKi
| Regional Level Types | |
|---|---|
| Llandybie (Llandebie) | - not defined - |
| Carmarthenshire | - not defined - |
| Wales | Country |
| UK | Country |
| Latitude & Longitude (WGS84): | 51° 49' 1'' North , 4° 0' 23'' West | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Latitude & Longitude (decimal): | 51.81695,-4.00667 | ||||||||||||||||||
| GeoHash: | G#: gcjnubfrt | ||||||||||||||||||
| UK National Grid Reference: | SN617151 | ||||||||||||||||||
| Köppen climate type: | Cfb : Temperate oceanic climate | ||||||||||||||||||
| Nearest Settlements: |
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| Other/historical names associated with this locality: | Dyfed |
Brammallite, recorded as a new mineral in 1943, is named after Dr Alfred Brammall, formerly of the Department of Geology at Imperial College of Science & Technology, London. Although the type locality is at Llandebie (Llandybie), the exact location is not recorded (but was most likely from the opencast coal mines here. The grid reference given is for the village of Llandebie itself.
At Llandebie, brammallite occurs as compact, white, flaky tufts, reminiscent of satin spar, formed by aggregates of elongated plates about 0.5 mm in length and 0.001 mm across, on shale.
Regions containing this locality
| Eurasian Plate | Tectonic Plate |
| Europe | Continent |
| British Isles | Group of Islands |
Select Mineral List Type
Standard Detailed Strunz Dana Chemical ElementsDetailed Mineral List:
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Reference: DAN Earth Sci. 208 (1973), 157; CM 36 (1998), 905 |
| ⓘ Paragonite var: Brammallite (FRL) Type Locality: Reference: DAN Earth Sci. 208 (1973), 157; CM 36 (1998), 905 |
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Paragonite var: Brammallite (TL) | 9.EC.15 | NaAl2(AlSi3O10)(OH)2 |
List of minerals arranged by Dana 8th Edition classification
| Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings | |||
|---|---|---|---|
| Sheets of 6-membered rings with 2:1 layers | |||
| ⓘ | Muscovite | 71.2.2a.1 | KAl2(AlSi3O10)(OH)2 |
| Unclassified Minerals, Mixtures, etc. | |||
| ⓘ | Paragonite var: Brammallite (FRL) | - | NaAl2(AlSi3O10)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | Oxygen | |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | Potassium | |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
Regional Geology
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
| Late Carboniferous 298.9 - 323.2 Ma ID: 3136571 | Late Carboniferous claystone Age: Pennsylvanian (298.9 - 323.2 Ma) Lithology: Major:{claystone}, Minor{siltstone,sandstone,coal} Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147] |
| Westphalian 307 - 315 Ma ID: 2036001 | Pennine Lower Coal Measures Formation And South Wales Lower Coal Measures Formation (Undifferentiated) Age: Pennsylvanian (307 - 315 Ma) Stratigraphic Name: Pennine Lower Coal Measures Formation; South Wales Lower Coal Measures Formation Lithology: Mudstone, siltstone, sandstone, coal, ironstone and ferricrete Reference: British Geological Survey. DiGMapGB-625. British Geological Survey ©NERC. [23] |
| Silurian 419.2 - 443.8 Ma ID: 3185808 | Paleozoic sedimentary rocks Age: Silurian (419.2 - 443.8 Ma) Lithology: Sedimentary rocks Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154] |
Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License
