Tywarnhayle Mine (Wheal Rock), Porthtowan, St Agnes, Cornwall, England, UKi
| Regional Level Types | |
|---|---|
| Tywarnhayle Mine (Wheal Rock) | Mine (Abandoned) |
| Porthtowan | Hamlet |
| St Agnes | Civil Parish |
| Cornwall | County |
| England | Constituent Country |
| UK | Country |
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Latitude & Longitude (WGS84):
50° 16' 48'' North , 5° 13' 48'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW699473
Type:
Mine (Abandoned) - last checked 2019
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Mount Hawke | 1,511 (2017) | 1.5km |
| North Country | 773 (2017) | 3.4km |
| Saint Agnes | 2,820 (2014) | 4.1km |
| Portreath | 963 (2017) | 4.7km |
| Redruth | 42,690 (2017) | 5.2km |
Note:
Not to be confused with West Wheal Kitty, which also was formerly worked under the name Wheal Rock. The latter mine, not Tywarnhayle Mine, is the type locality of stannite.
The engine house dominates the skyline on top of the steep spoil heaps that tumble down to the Redruth Road though on reaching the spot it is quite clear the house is built on a small remnant of exposed rock. The building has been preserved and is a fabulous example of the Cornish engine house. Several other ruined buildings and chimneys are clustered at the inland end of the hillside.
Mineral samples are plentiful within the dumps, mostly pyrite or chalcopyrite in quartz with other minerals occurring infrequently. (Aug. 2016)
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded from this region.Mineral List
Mineral list contains entries from the region specified including sub-localities14 valid minerals.
Detailed Mineral List:
| ⓘ Anatase Formula: TiO2 References: |
| ⓘ Cassiterite Formula: SnO2 References: |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ 'Chlorite Group' Colour: green Description: The anatase crystals sit on a clorite matrix associated with quartz. References: |
| ⓘ Clinochlore Formula: Mg5Al(AlSi3O10)(OH)8 |
| ⓘ Cuprite Formula: Cu2O References: Griffiths, Dave (n.d.) Personal communication (1).Identified by Dave Griffiths: Visual Identification |
| ⓘ Fluorite Formula: CaF2 References: Griffiths, Dave (n.d.) Personal communication (1).Identified by Dave Griffiths: Visual Identification |
| ⓘ Goethite Formula: Fe3+O(OH) References: |
| ⓘ Hematite Formula: Fe2O3 References: Griffiths, Dave (n.d.) Personal communication (1).Identified by Dave Griffiths: Visual Identification |
| ⓘ 'Limonite' References: |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 References: |
| ⓘ Pyrite Formula: FeS2 References: |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Siderite Formula: FeCO3 References: |
| ⓘ Sphalerite Formula: ZnS References: |
| ⓘ Tenorite Formula: CuO |
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Cuprite | 4.AA.10 | Cu2O |
| ⓘ | Tenorite | 4.AB.10 | CuO |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Cassiterite | 4.DB.05 | SnO2 |
| ⓘ | Anatase | 4.DD.05 | TiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 9 - Silicates | |||
| ⓘ | Clinochlore | 9.EC.55 | Mg5Al(AlSi3O10)(OH)8 |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | ⓘ Siderite | FeCO3 |
| O | Oxygen | |
| O | ⓘ Anatase | TiO2 |
| O | ⓘ Cassiterite | SnO2 |
| O | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| O | ⓘ Cuprite | Cu2O |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Tenorite | CuO |
| F | Fluorine | |
| F | ⓘ Fluorite | CaF2 |
| Mg | Magnesium | |
| Mg | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Al | Aluminium | |
| Al | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Si | Silicon | |
| Si | ⓘ Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| Ca | Calcium | |
| Ca | ⓘ Fluorite | CaF2 |
| Ti | Titanium | |
| Ti | ⓘ Anatase | TiO2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Siderite | FeCO3 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Cuprite | Cu2O |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | ⓘ Tenorite | CuO |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| Sn | Tin | |
| Sn | ⓘ Cassiterite | SnO2 |
Geochronology
| Geologic Time | Rocks, Minerals and Events | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Phanerozoic | ||||||||||||||||||||||
| Paleozoic | ||||||||||||||||||||||
| Permian | ||||||||||||||||||||||
| Guadalupian |
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| Cisuralian |
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Localities in this Region
- England
- Cornwall
- St Agnes
- Porthtowan
- Tywarnhayle Mine (Wheal Rock)
- Porthtowan
- St Agnes
- Cornwall
Other Regions, Features and Areas containing this locality
British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
- Rheno-Hercynian BeltOrogenic Belt
EuropeContinent
UK
- England
- Cornubian mining districtMining District
- Cornwall
- St Agnes Mining DistrictMining District
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
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References
Tywarnhayle Mine, Porthtowan, St Agnes, Cornwall, England, UK