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United Mines (Gwennap United Mines), Clifford Amalgamated Mines, St Day, Gwennap, Cornwall, England, UKi
Regional Level Types
United Mines (Gwennap United Mines)Group of Mines
Clifford Amalgamated MinesGroup of Mines
St DayVillage
GwennapCivil Parish
CornwallCounty
EnglandConstituent Country
UKCountry

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Latitude & Longitude (WGS84):
50° 13' 52'' North , 5° 9' 25'' West
Latitude & Longitude (decimal):
Type:
Group of Mines
KΓΆppen climate type:
Nearest Settlements:
PlacePopulationDistance
St. Day700 (2011)2.2km
Chacewater1,226 (2017)2.8km
Perranwell1,207 (2017)3.3km
Ponsanooth967 (2017)3.7km
Redruth42,690 (2017)4.8km
Mindat Locality ID:
936
Long-form identifier:
mindat:1:2:936:9
GUID (UUID V4):
a2501340-469c-493b-ae1b-c69dc196e4d4


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.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity 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-localities

28 valid minerals.

Detailed Mineral List:

β“˜ Anatase
Formula: TiO2
β“˜ Arsenopyrite
Formula: FeAsS
β“˜ Baryte
Formula: BaSO4
β“˜ Bornite
Formula: Cu5FeS4
β“˜ Brochantite
Formula: Cu4(SO4)(OH)6
β“˜ Cassiterite
Formula: SnO2
β“˜ Chalcocite
Formula: Cu2S
β“˜ Chalcophyllite
Formula: Cu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O
β“˜ Chalcopyrite
Formula: CuFeS2
β“˜ Chalcopyrite var. Blister Copper
Formula: CuFeS2
β“˜ 'Chlorite Group'
β“˜ Copper
Formula: Cu
β“˜ Cornubite
Formula: Cu5(AsO4)2(OH)4
β“˜ Cuprite
Formula: Cu2O
β“˜ Cuprite var. Chalcotrichite
Formula: Cu2O
β“˜ Fluorite
Formula: CaF2
β“˜ Galena
Formula: PbS
Description: Found banded with quartz on the spoil heaps of Wheal Clifford
β“˜ Kaolinite
Formula: Al2(Si2O5)(OH)4
β“˜ Malachite
Formula: Cu2(CO3)(OH)2
β“˜ Marcasite
Formula: FeS2
β“˜ Melanterite
Formula: Fe2+(H2O)6SO4 · H2O
β“˜ Millerite
Formula: NiS
β“˜ Mimetite
Formula: Pb5(AsO4)3Cl
β“˜ Molybdenite
Formula: MoS2
β“˜ Olivenite
Formula: Cu2(AsO4)(OH)
β“˜ Pseudomalachite
Formula: Cu5(PO4)2(OH)4
β“˜ Pyrite
Formula: FeS2
β“˜ Quartz
Formula: SiO2
References:
β“˜ Quartz var. Rock Crystal
Formula: SiO2
β“˜ Siderite
Formula: FeCO3
β“˜ Sphalerite
Formula: ZnS
β“˜ 'Tennantite Subgroup'
Formula: Cu6(Cu4C2+2)As4S12S
β“˜ Tenorite
Formula: CuO
β“˜ 'Wolframite Group'

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
β“˜Chalcocite2.BA.05Cu2S
β“˜Bornite2.BA.15Cu5FeS4
β“˜Sphalerite2.CB.05aZnS
β“˜Chalcopyrite
var. Blister Copper
2.CB.10aCuFeS2
β“˜2.CB.10aCuFeS2
β“˜Millerite2.CC.20NiS
β“˜Galena2.CD.10PbS
β“˜Molybdenite2.EA.30MoS2
β“˜Pyrite2.EB.05aFeS2
β“˜Marcasite2.EB.10aFeS2
β“˜Arsenopyrite2.EB.20FeAsS
β“˜'Tennantite Subgroup'2.GB.05Cu6(Cu4C2+2)As4S12S
Group 3 - Halides
β“˜Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
β“˜Cuprite4.AA.10Cu2O
β“˜var. Chalcotrichite4.AA.10Cu2O
β“˜Tenorite4.AB.10CuO
β“˜Quartz4.DA.05SiO2
β“˜var. Rock Crystal4.DA.05SiO2
β“˜Cassiterite4.DB.05SnO2
β“˜'Wolframite Group'4.DB.30 va
β“˜Anatase4.DD.05TiO2
Group 5 - Nitrates and Carbonates
β“˜Siderite5.AB.05FeCO3
β“˜Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Baryte7.AD.35BaSO4
β“˜Brochantite7.BB.25Cu4(SO4)(OH)6
β“˜Melanterite7.CB.35Fe2+(H2O)6SO4 Β· H2O
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Olivenite8.BB.30Cu2(AsO4)(OH)
β“˜Pseudomalachite8.BD.05Cu5(PO4)2(OH)4
β“˜Cornubite8.BD.30Cu5(AsO4)2(OH)4
β“˜Mimetite8.BN.05Pb5(AsO4)3Cl
β“˜Chalcophyllite8.DF.30Cu18Al2(AsO4)4(SO4)3(OH)24 Β· 36H2O
Group 9 - Silicates
β“˜Kaolinite9.ED.05Al2(Si2O5)(OH)4
Unclassified
β“˜'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ BrochantiteCu4(SO4)(OH)6
Hβ“˜ ChalcophylliteCu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O
Hβ“˜ CornubiteCu5(AsO4)2(OH)4
Hβ“˜ KaoliniteAl2(Si2O5)(OH)4
Hβ“˜ MalachiteCu2(CO3)(OH)2
Hβ“˜ MelanteriteFe2+(H2O)6SO4 · H2O
Hβ“˜ OliveniteCu2(AsO4)(OH)
Hβ“˜ PseudomalachiteCu5(PO4)2(OH)4
CCarbon
Cβ“˜ MalachiteCu2(CO3)(OH)2
Cβ“˜ SideriteFeCO3
OOxygen
Oβ“˜ AnataseTiO2
Oβ“˜ BaryteBaSO4
Oβ“˜ BrochantiteCu4(SO4)(OH)6
Oβ“˜ CassiteriteSnO2
Oβ“˜ Cuprite var. ChalcotrichiteCu2O
Oβ“˜ ChalcophylliteCu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O
Oβ“˜ CornubiteCu5(AsO4)2(OH)4
Oβ“˜ CupriteCu2O
Oβ“˜ KaoliniteAl2(Si2O5)(OH)4
Oβ“˜ MalachiteCu2(CO3)(OH)2
Oβ“˜ MelanteriteFe2+(H2O)6SO4 · H2O
Oβ“˜ MimetitePb5(AsO4)3Cl
Oβ“˜ OliveniteCu2(AsO4)(OH)
Oβ“˜ PseudomalachiteCu5(PO4)2(OH)4
Oβ“˜ QuartzSiO2
Oβ“˜ SideriteFeCO3
Oβ“˜ TenoriteCuO
Oβ“˜ Quartz var. Rock CrystalSiO2
FFluorine
Fβ“˜ FluoriteCaF2
AlAluminium
Alβ“˜ ChalcophylliteCu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O
Alβ“˜ KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Siβ“˜ KaoliniteAl2(Si2O5)(OH)4
Siβ“˜ QuartzSiO2
Siβ“˜ Quartz var. Rock CrystalSiO2
PPhosphorus
Pβ“˜ PseudomalachiteCu5(PO4)2(OH)4
SSulfur
Sβ“˜ ArsenopyriteFeAsS
Sβ“˜ BaryteBaSO4
Sβ“˜ BorniteCu5FeS4
Sβ“˜ BrochantiteCu4(SO4)(OH)6
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ ChalcociteCu2S
Sβ“˜ ChalcophylliteCu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O
Sβ“˜ GalenaPbS
Sβ“˜ MarcasiteFeS2
Sβ“˜ MelanteriteFe2+(H2O)6SO4 · H2O
Sβ“˜ MilleriteNiS
Sβ“˜ MolybdeniteMoS2
Sβ“˜ PyriteFeS2
Sβ“˜ SphaleriteZnS
Sβ“˜ Tennantite SubgroupCu6(Cu4C22+)As4S12S
Sβ“˜ Chalcopyrite var. Blister CopperCuFeS2
ClChlorine
Clβ“˜ MimetitePb5(AsO4)3Cl
CaCalcium
Caβ“˜ FluoriteCaF2
TiTitanium
Tiβ“˜ AnataseTiO2
FeIron
Feβ“˜ ArsenopyriteFeAsS
Feβ“˜ BorniteCu5FeS4
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ MarcasiteFeS2
Feβ“˜ MelanteriteFe2+(H2O)6SO4 · H2O
Feβ“˜ PyriteFeS2
Feβ“˜ SideriteFeCO3
Feβ“˜ Chalcopyrite var. Blister CopperCuFeS2
NiNickel
Niβ“˜ MilleriteNiS
CuCopper
Cuβ“˜ BorniteCu5FeS4
Cuβ“˜ BrochantiteCu4(SO4)(OH)6
Cuβ“˜ ChalcopyriteCuFeS2
Cuβ“˜ ChalcociteCu2S
Cuβ“˜ Cuprite var. ChalcotrichiteCu2O
Cuβ“˜ ChalcophylliteCu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O
Cuβ“˜ CornubiteCu5(AsO4)2(OH)4
Cuβ“˜ CupriteCu2O
Cuβ“˜ CopperCu
Cuβ“˜ MalachiteCu2(CO3)(OH)2
Cuβ“˜ OliveniteCu2(AsO4)(OH)
Cuβ“˜ PseudomalachiteCu5(PO4)2(OH)4
Cuβ“˜ Tennantite SubgroupCu6(Cu4C22+)As4S12S
Cuβ“˜ TenoriteCuO
Cuβ“˜ Chalcopyrite var. Blister CopperCuFeS2
ZnZinc
Znβ“˜ SphaleriteZnS
AsArsenic
Asβ“˜ ArsenopyriteFeAsS
Asβ“˜ ChalcophylliteCu18Al2(AsO4)4(SO4)3(OH)24 · 36H2O
Asβ“˜ CornubiteCu5(AsO4)2(OH)4
Asβ“˜ MimetitePb5(AsO4)3Cl
Asβ“˜ OliveniteCu2(AsO4)(OH)
Asβ“˜ Tennantite SubgroupCu6(Cu4C22+)As4S12S
MoMolybdenum
Moβ“˜ MolybdeniteMoS2
SnTin
Snβ“˜ CassiteriteSnO2
BaBarium
Baβ“˜ BaryteBaSO4
PbLead
Pbβ“˜ GalenaPbS
Pbβ“˜ MimetitePb5(AsO4)3Cl

Geochronology

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Paleozoic
  Permian
   Guadalupian
β“˜ Major polymetallic mineralization~270 MaCornwall, England, UK
   Cisuralian
β“˜ Porphyry dikes intruded (latest age)~275 MaCornwall, England, UK
β“˜ Greisenization (latest age)~280 MaCornwall, England, UK
β“˜ Porphyry dikes intruded (earliest age)~280 MaCornwall, England, UK
β“˜ Formation of metallized pegmatites~285 MaCornwall, England, UK
β“˜ Greisenization (earliest age)~285 MaCornwall, England, UK
β“˜ Emplacement of major plutons~295 MaCornwall, England, UK

Localities in this Region

Other Regions, Features and Areas containing this locality

British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
UK

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 visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

 
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