Wheal Unity Wood (Tolgullow United Mine; West Poldice Mine), Chacewater, Cornwall, England, UKi
Regional Level Types | |
---|---|
Wheal Unity Wood (Tolgullow United Mine; West Poldice Mine) | Mine (Abandoned) |
Chacewater | Civil Parish |
Cornwall | County |
England | Constituent Country |
UK | Country |
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Latitude & Longitude (WGS84):
50° 14' 53'' North , 5° 10' 48'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW733436
Type:
Mine (Abandoned) - last checked 2019
KΓΆppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
St. Day | 700 (2011) | 1.0km |
Chacewater | 1,226 (2017) | 1.9km |
Redruth | 42,690 (2017) | 3.6km |
North Country | 773 (2017) | 4.1km |
Mount Hawke | 1,511 (2017) | 4.3km |
Mindat Locality ID:
38631
Long-form identifier:
mindat:1:2:38631:0
GUID (UUID V4):
e5bf33b7-fa79-4828-9421-106614c3832e
Unity Wood Mine extends over a strike length of approximately 1 km extending in an east-north-easterly direction from Zimapan in the west through the southern section of the woods known as Unity Wood to its eastern limit in the vicinity of a farm known as St Neot.
The most visible remains of the mine are two engine houses in the vicinity of Magor's Shaft. These comprise a large pumping engine house that worked Magor's Shaft and a smaller rotative engine house that appears to have done multiple duties of stamping and winding. Unusually, this engine house is not in an alignment that would have allowed it to easily wind from Magor's Shaft, but instead, it is believed to have wound from a shaft some way to the south-west of it.
A significant dump is still to be found to the south-west of Magor's pumping engine house that will yield specimens with diligent searching. An accessible dump of Harper's Shaft lies approximately 100 metres to the north-east of Magor's Shaft beside the rough track and again specimens are to be found especially around the shaft collar.
The footpath down the hill from the dumps at Magor's Shaft leads to an area in a corner of the woods where there is a shaft and some dump material, though this is mostly barren.
The section of the mine that lies within the woodland itself has several shafts, the majority of these are now choked with others having been made safe. Reed's Shaft however, is easily found on the slope opposite the pond, above the track that runs along the lower edge of the woods. This has been caged but samples are easily found in the material where the wall surrounding the shaft collar has fallen out.
There are also extensive ancient surface workings marking the courses of lodes on the site. Whilst collecting in here is challenging, applying diligence and patience can yield some extremely good specimens.
Page 79 in the printed version (page 92 in the pdf available on-line) of the [Redruth Area] Mineral Tramways Conservation Management Plan has an excellent map of the shafts in Unity Wood. The document is of course a valuable resource for other mines.
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
18 valid minerals.
Detailed Mineral List:
β Arsenopyrite Formula: FeAsS |
β Bornite Formula: Cu5FeS4 References: Griffiths, Dave (2023) Personal Communication. Identified by Dave Griffiths: Visual Identification |
β Cassiterite Formula: SnO2 References: |
β Chalcocite Formula: Cu2S |
β Chalcopyrite Formula: CuFeS2 References: |
β 'Chlorite Group' References: |
β Cuprite Formula: Cu2O References: Dave Griffiths CollectionIdentified by Dave Griffiths: Visual Identification |
β Fluorite Formula: CaF2 References: |
β Galena Formula: PbS |
β Goethite Formula: Ξ±-Fe3+O(OH) |
β 'Mica Group' References: Dale Foster CollectionIdentified by Dale Foster: Visual Identification |
β Molybdenite Formula: MoS2 References: |
β Muscovite Formula: KAl2(AlSi3O10)(OH)2 References: |
β Pyrite Formula: FeS2 References: |
β Quartz Formula: SiO2 |
β Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) References: |
β Scorodite Formula: Fe3+AsO4 · 2H2O References: |
β Siderite Formula: FeCO3 References: |
β Sphalerite Formula: ZnS References: |
β Tenorite Formula: CuO |
β 'Wolframite Group' References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
β | Chalcocite | 2.BA.05 | Cu2S |
β | Bornite | 2.BA.15 | Cu5FeS4 |
β | Sphalerite | 2.CB.05a | ZnS |
β | Chalcopyrite | 2.CB.10a | CuFeS2 |
β | Galena | 2.CD.10 | PbS |
β | Molybdenite | 2.EA.30 | MoS2 |
β | Pyrite | 2.EB.05a | FeS2 |
β | Arsenopyrite | 2.EB.20 | FeAsS |
Group 3 - Halides | |||
β | Fluorite | 3.AB.25 | CaF2 |
Group 4 - Oxides and Hydroxides | |||
β | Goethite | 4.00. | Ξ±-Fe3+O(OH) |
β | Cuprite | 4.AA.10 | Cu2O |
β | Tenorite | 4.AB.10 | CuO |
β | Quartz | 4.DA.05 | SiO2 |
β | Cassiterite | 4.DB.05 | SnO2 |
β | 'Wolframite Group' | 4.DB.30 va | |
Group 5 - Nitrates and Carbonates | |||
β | Siderite | 5.AB.05 | FeCO3 |
Group 8 - Phosphates, Arsenates and Vanadates | |||
β | Scorodite | 8.CD.10 | Fe3+AsO4 Β· 2H2O |
Group 9 - Silicates | |||
β | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
β | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
Unclassified | |||
β | 'Chlorite Group' | - | |
β | 'Mica Group' | - |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | β Goethite | Ξ±-Fe3+O(OH) |
H | β Muscovite | KAl2(AlSi3O10)(OH)2 |
H | β Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
H | β Scorodite | Fe3+AsO4 · 2H2O |
B | Boron | |
B | β Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
C | Carbon | |
C | β Siderite | FeCO3 |
O | Oxygen | |
O | β Cassiterite | SnO2 |
O | β Cuprite | Cu2O |
O | β Goethite | Ξ±-Fe3+O(OH) |
O | β Muscovite | KAl2(AlSi3O10)(OH)2 |
O | β Quartz | SiO2 |
O | β Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
O | β Scorodite | Fe3+AsO4 · 2H2O |
O | β Siderite | FeCO3 |
O | β Tenorite | CuO |
F | Fluorine | |
F | β Fluorite | CaF2 |
Na | Sodium | |
Na | β Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
Al | Aluminium | |
Al | β Muscovite | KAl2(AlSi3O10)(OH)2 |
Al | β Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
Si | Silicon | |
Si | β Muscovite | KAl2(AlSi3O10)(OH)2 |
Si | β Quartz | SiO2 |
Si | β Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
S | Sulfur | |
S | β Arsenopyrite | FeAsS |
S | β Bornite | Cu5FeS4 |
S | β Chalcopyrite | CuFeS2 |
S | β Chalcocite | Cu2S |
S | β Galena | PbS |
S | β Molybdenite | MoS2 |
S | β Pyrite | FeS2 |
S | β Sphalerite | ZnS |
K | Potassium | |
K | β Muscovite | KAl2(AlSi3O10)(OH)2 |
Ca | Calcium | |
Ca | β Fluorite | CaF2 |
Fe | Iron | |
Fe | β Arsenopyrite | FeAsS |
Fe | β Bornite | Cu5FeS4 |
Fe | β Chalcopyrite | CuFeS2 |
Fe | β Goethite | Ξ±-Fe3+O(OH) |
Fe | β Pyrite | FeS2 |
Fe | β Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
Fe | β Scorodite | Fe3+AsO4 · 2H2O |
Fe | β Siderite | FeCO3 |
Cu | Copper | |
Cu | β Bornite | Cu5FeS4 |
Cu | β Chalcopyrite | CuFeS2 |
Cu | β Chalcocite | Cu2S |
Cu | β Cuprite | Cu2O |
Cu | β Tenorite | CuO |
Zn | Zinc | |
Zn | β Sphalerite | ZnS |
As | Arsenic | |
As | β Arsenopyrite | FeAsS |
As | β Scorodite | Fe3+AsO4 · 2H2O |
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 | |||||||||||||||||||||
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Phanerozoic | ||||||||||||||||||||||
Paleozoic | ||||||||||||||||||||||
Permian | ||||||||||||||||||||||
Guadalupian |
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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
- Devon and Cornwall metalliferous mining districtMining District
- Cornwall
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