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Ventonwyn Mine, Great Dowgas Mine (St Stephen Tin and Copper Mines), Downderry, St Stephen-in-Brannel, Cornwall, England, UKi
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Latitude & Longitude (WGS84):
50° 19' 4'' North , 4° 51' 47'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW962504
Type:
Mine (Abandoned) - last checked 2020
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Grampound | 537 (2017) | 3.3km |
| Saint Stephen | 2,252 (2015) | 4.0km |
| Nanpean | 2,563 (2017) | 5.7km |
| St Austell | 25,447 (2017) | 6.9km |
| Probus | 1,906 (2017) | 7.0km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| British Micromount Society, Devon and Cornwall Branch Meetings | Liskeard, Cornwall | 32km |
A tin mine, which worked on the western extensions of the Great Hewas lodes. It was worked at a small scale for many years and was eventually amalgamated with Great Dowgas Mine. The grid reference marks the ruin of the engine house, which stands in the middle of a field near Ventonwyn farm.
Between 1889 and 1909, the mine produced 167 tons of black tin. Most of this ore was raised after 1903, when it was part of Great Dowgas Mine.
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:
| ⓘ Cassiterite Formula: SnO2 |
| ⓘ 'Chlorite Group' |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Cassiterite | 4.DB.05 | SnO2 |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Cassiterite | SnO2 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Sn | Tin | |
| Sn | ⓘ Cassiterite | SnO2 |
Geochronology
| Geologic Time | Rocks, Minerals and Events | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Phanerozoic | ||||||||||||||||||||||
| Paleozoic | ||||||||||||||||||||||
| Permian | ||||||||||||||||||||||
| Guadalupian |
| |||||||||||||||||||||
| Cisuralian |
| |||||||||||||||||||||
Other Regions, Features and Areas containing this locality
British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
- Rheno-Hercynian BeltOrogenic Belt
EuropeContinent
UK
- England
- Cornwall
- St Austell Mining DistrictMining District
- Devon and Cornwall metalliferous mining districtMining District
- Cornwall
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Ventonwyn Mine, Great Dowgas Mine, Downderry, St Stephen-in-Brannel, Cornwall, England, UK