Wheal Clifford, United Mines (Gwennap United Mines), Clifford Amalgamated Mines, St Day, Gwennap, Cornwall, England, UKi
| Regional Level Types | |
|---|---|
| Wheal Clifford | Mine |
| United Mines (Gwennap United Mines) | Group of Mines |
| Clifford Amalgamated Mines | Group of Mines |
| St Day | Village |
| Gwennap | Civil Parish |
| Cornwall | County |
| England | Constituent Country |
| UK | Country |
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Latitude & Longitude (WGS84):
50° 13' 55'' North , 5° 8' 53'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW755417
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| St. Day | 700 (2011) | 2.8km |
| Chacewater | 1,226 (2017) | 2.8km |
| Perranwell | 1,207 (2017) | 2.9km |
| Ponsanooth | 967 (2017) | 3.7km |
| Devoran | 400 (2014) | 4.5km |
Mindat Locality ID:
937
Long-form identifier:
mindat:1:2:937:8
GUID (UUID V4):
3d7c33ee-3e77-4713-a96d-f5e09872ca48
Part of the United Mines group - see main page for details.
Hamilton Jenkin makes particular reference to reports of the 'hot lode' intersected in Wheal Clifford where water at a temperature of around 100 deg Fahrenheit continually poured over the miners. Citing various reports the conditions were said to be extreme greatly reducing productivity and raising costs as miners could barely work for 1 hour in a day. On the 280 fathom level west of Garland's Shaft the water as recorded at 128 degrees F. (Mines and Miners of Cornwall, pt VI Around Gwennap, 1963, Truro Bookshop, Truro)
The tips occupy an extensive area on the slope above the road. Whilst partly overgrown with trees, several large heaps are still accessible. Towards the upper end of the site is a shaft collar that has recently been enclosed with a chain link fence. From this a column of vapour rose up into the absolutely still air on the January morning when I visited. Not surprising given the reports of the heat within the workings. Jan, 2023.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| β Arsenopyrite Formula: FeAsS References: |
| β Cassiterite Formula: SnO2 |
| β Chalcocite Formula: Cu2S Habit: Massive Colour: Dark Grey Description: Found in the spoil heaps intergrown and partially replacing chalcopyrite. References: |
| β Chalcopyrite Formula: CuFeS2 Habit: Massive Description: Found in spoil heaps in quartz matrix intergrown with chalcocite. References: |
| β Galena Formula: PbS Description: Found banded with quartz on the spoil heaps of Wheal Clifford References: |
| β Marcasite Formula: FeS2 |
| β Molybdenite Formula: MoS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Chalcocite | 2.BA.05 | Cu2S |
| β | Chalcopyrite | 2.CB.10a | CuFeS2 |
| β | Galena | 2.CD.10 | PbS |
| β | Molybdenite | 2.EA.30 | MoS2 |
| β | Marcasite | 2.EB.10a | FeS2 |
| β | Arsenopyrite | 2.EB.20 | FeAsS |
| Group 4 - Oxides and Hydroxides | |||
| β | Cassiterite | 4.DB.05 | SnO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | β Cassiterite | SnO2 |
| S | Sulfur | |
| S | β Arsenopyrite | FeAsS |
| S | β Chalcopyrite | CuFeS2 |
| S | β Chalcocite | Cu2S |
| S | β Galena | PbS |
| S | β Marcasite | FeS2 |
| S | β Molybdenite | MoS2 |
| Fe | Iron | |
| Fe | β Arsenopyrite | FeAsS |
| Fe | β Chalcopyrite | CuFeS2 |
| Fe | β Marcasite | FeS2 |
| Cu | Copper | |
| Cu | β Chalcopyrite | CuFeS2 |
| Cu | β Chalcocite | Cu2S |
| As | Arsenic | |
| As | β Arsenopyrite | FeAsS |
| Mo | Molybdenum | |
| Mo | β Molybdenite | MoS2 |
| Sn | Tin | |
| Sn | β Cassiterite | SnO2 |
| Pb | Lead | |
| Pb | β Galena | PbS |
Geochronology
| Geologic Time | Rocks, Minerals and Events | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Phanerozoic | ||||||||||||||||||||||
| Paleozoic | ||||||||||||||||||||||
| Permian | ||||||||||||||||||||||
| Guadalupian |
| |||||||||||||||||||||
| Cisuralian |
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Other Regions, Features and Areas containing this locality
British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
UK
- England
- Cornwall
- Camborne-Redruth and St Day Mining DistrictMining District
- Gwennap
- St DayVillage
- Devon and Cornwall metalliferous mining districtMining District
- Cornwall
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References
