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United Mines (Gwennap United Mines), Clifford Amalgamated Mines, Gwennap, Cornwall, England, UKi
| Regional Level Types | |
|---|---|
| United Mines (Gwennap United Mines) | Group of Mines |
| Clifford Amalgamated Mines | Group of Mines |
| Gwennap | Civil Parish |
| Cornwall | County |
| England | Constituent Country |
| UK | Country |
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Latitude & Longitude (WGS84):
50° 13' 52'' North , 5° 9' 25'' West
Latitude & Longitude (decimal):
Type:
Group of Mines
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| St. Day | 700 (2011) | 2.2km |
| Chacewater | 1,226 (2017) | 2.8km |
| Perranwell | 1,207 (2017) | 3.3km |
| Ponsanooth | 967 (2017) | 3.7km |
| Redruth | 42,690 (2017) | 4.8km |
United Mines (Gwennap United Mines) was the name taken by the company consisting of the former Ale and Cakes Mine, Wheal Cupboard and Poldory who amalgamated in about 1780. Later the group was expanded to include East Ale and Cakes Mine and Wheals Andrew (Friendship), Clifford and Squire, which all are located within a distance of about 1 km from United Downs. The United Mines worked mainly two lodes: the 'Great South Lode' and, a little further to the north, the 'Hot Lode', named for its extreme temperatures at greater depth.
In 1861, the United Mines were combined with the Great Consolidated Mines which ceased working in 1856, and which lay about 1 km further to the north, and included Wheals Girl, West Virgin, Virgin, East Virgin and Fortune.
The combined group was renamed Clifford Amalgamated Mines and continued, unprofitably, until 1870.
Note: Not to be mistaken for the St Day United Mines.
In 1861, the United Mines were combined with the Great Consolidated Mines which ceased working in 1856, and which lay about 1 km further to the north, and included Wheals Girl, West Virgin, Virgin, East Virgin and Fortune.
The combined group was renamed Clifford Amalgamated Mines and continued, unprofitably, until 1870.
Note: Not to be mistaken for the St Day United Mines.
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-localities29 valid minerals.
Detailed Mineral List:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Copper | 1.AA.05 | Cu |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Chalcocite | 2.BA.05 | Cu2S |
| ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
| ⓘ | Covellite | 2.CA.05a | CuS |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | var. Blistered Copper | 2.CB.10a | CuFeS2 |
| ⓘ | Millerite | 2.CC.20 | NiS |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Marcasite | 2.EB.10a | FeS2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| ⓘ | 'Tennantite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)As4S12S |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Cuprite var. Chalcotrichite | 4.AA.10 | Cu2O |
| ⓘ | 4.AA.10 | Cu2O | |
| ⓘ | Tenorite | 4.AB.10 | CuO |
| ⓘ | Quartz var. Amethyst | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | var. Rock Crystal | 4.DA.05 | SiO2 |
| ⓘ | Cassiterite | 4.DB.05 | SnO2 |
| ⓘ | 'Wolframite Group' | 4.DB.30 va | |
| ⓘ | Anatase | 4.DD.05 | TiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Brochantite | 7.BB.25 | Cu4(SO4)(OH)6 |
| ⓘ | Melanterite | 7.CB.35 | Fe2+(H2O)6(SO4) · H2O |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Olivenite | 8.BB.30 | Cu2(AsO4)(OH) |
| ⓘ | Pseudomalachite | 8.BD.05 | Cu5(PO4)2(OH)4 |
| ⓘ | Cornubite | 8.BD.30 | Cu5(AsO4)2(OH)4 |
| ⓘ | Mimetite | 8.BN.05 | Pb5(AsO4)3Cl |
| ⓘ | Chalcophyllite | 8.DF.30 | Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O |
| Group 9 - Silicates | |||
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| H | ⓘ Chalcophyllite | Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O |
| H | ⓘ Cornubite | Cu5(AsO4)2(OH)4 |
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| H | ⓘ Olivenite | Cu2(AsO4)(OH) |
| H | ⓘ Pseudomalachite | Cu5(PO4)2(OH)4 |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | ⓘ Siderite | FeCO3 |
| O | Oxygen | |
| O | ⓘ Quartz var. Amethyst | SiO2 |
| O | ⓘ Anatase | TiO2 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| O | ⓘ Cassiterite | SnO2 |
| O | ⓘ Cuprite var. Chalcotrichite | Cu2O |
| O | ⓘ Chalcophyllite | Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O |
| O | ⓘ Cornubite | Cu5(AsO4)2(OH)4 |
| O | ⓘ Cuprite | Cu2O |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| O | ⓘ Mimetite | Pb5(AsO4)3Cl |
| O | ⓘ Olivenite | Cu2(AsO4)(OH) |
| O | ⓘ Pseudomalachite | Cu5(PO4)2(OH)4 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Tenorite | CuO |
| O | ⓘ Quartz var. Rock Crystal | SiO2 |
| F | Fluorine | |
| F | ⓘ Fluorite | CaF2 |
| Al | Aluminium | |
| Al | ⓘ Chalcophyllite | Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | Silicon | |
| Si | ⓘ Quartz var. Amethyst | SiO2 |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Quartz var. Rock Crystal | SiO2 |
| P | Phosphorus | |
| P | ⓘ Pseudomalachite | Cu5(PO4)2(OH)4 |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Bornite | Cu5FeS4 |
| S | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Chalcocite | Cu2S |
| S | ⓘ Chalcophyllite | Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O |
| S | ⓘ Covellite | CuS |
| S | ⓘ Galena | PbS |
| S | ⓘ Marcasite | FeS2 |
| S | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| S | ⓘ Millerite | NiS |
| S | ⓘ Molybdenite | MoS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Tennantite Subgroup | Cu6(Cu4C22+)As4S12S |
| S | ⓘ Chalcopyrite var. Blistered Copper | CuFeS2 |
| Cl | Chlorine | |
| Cl | ⓘ Mimetite | Pb5(AsO4)3Cl |
| Ca | Calcium | |
| Ca | ⓘ Fluorite | CaF2 |
| Ti | Titanium | |
| Ti | ⓘ Anatase | TiO2 |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Marcasite | FeS2 |
| Fe | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Siderite | FeCO3 |
| Fe | ⓘ Chalcopyrite var. Blistered Copper | CuFeS2 |
| Ni | Nickel | |
| Ni | ⓘ Millerite | NiS |
| Cu | Copper | |
| Cu | ⓘ Bornite | Cu5FeS4 |
| Cu | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Chalcocite | Cu2S |
| Cu | ⓘ Cuprite var. Chalcotrichite | Cu2O |
| Cu | ⓘ Chalcophyllite | Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O |
| Cu | ⓘ Cornubite | Cu5(AsO4)2(OH)4 |
| Cu | ⓘ Covellite | CuS |
| Cu | ⓘ Cuprite | Cu2O |
| Cu | ⓘ Native Copper | Cu |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Cu | ⓘ Olivenite | Cu2(AsO4)(OH) |
| Cu | ⓘ Pseudomalachite | Cu5(PO4)2(OH)4 |
| Cu | ⓘ Tennantite Subgroup | Cu6(Cu4C22+)As4S12S |
| Cu | ⓘ Tenorite | CuO |
| Cu | ⓘ Chalcopyrite var. Blistered Copper | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| As | ⓘ Chalcophyllite | Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O |
| As | ⓘ Cornubite | Cu5(AsO4)2(OH)4 |
| As | ⓘ Mimetite | Pb5(AsO4)3Cl |
| As | ⓘ Olivenite | Cu2(AsO4)(OH) |
| As | ⓘ Tennantite Subgroup | Cu6(Cu4C22+)As4S12S |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
| Sn | Tin | |
| Sn | ⓘ Cassiterite | SnO2 |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Mimetite | Pb5(AsO4)3Cl |
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
- Gwennap
- Clifford Amalgamated Mines
- United Mines (Gwennap United Mines)
- Clifford Amalgamated Mines
- Gwennap
- 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
- Camborne-Redruth and St Day Mining DistrictMining District
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References
United Mines, Clifford Amalgamated Mines, Gwennap, Cornwall, England, UK