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Great Wheal Fortune, Breage, Cornwall, England, UK

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Latitude & Longitude (WGS84): 50° 6' 43'' North , 5° 19' 15'' West
Latitude & Longitude (decimal): 50.11201,-5.32091
GeoHash:G#: gbujnft7t
UK National Grid Reference:SW626289
Köppen climate type:Cfb : Temperate oceanic climate


Active from 1855 to 1880, with a total output of 2,992 tons of tin, 322 tons of copper, as well as some tungsten and arsenic. This mine worked lodes in the valley near Trelissick and Carnmeal Downs.
Large opencast working on series of lodes known as Conquer Branches.

Regions containing this locality

Devon and Cornwall metalliferous mining district, England, UK

Mining District - 759 mineral species & varietal names listed

Mount's Bay Mining District, Cornwall, England, UK

Mining District - 242 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


14 valid minerals.

Detailed Mineral List:

Arsenopyrite
Formula: FeAsS
Reference: No reference listed
Bornite
Formula: Cu5FeS4
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
Cassiterite
Formula: SnO2
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.; Rocks & Min. 19, 8
Chalcocite
Formula: Cu2S
Reference: Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
Chalcopyrite
Formula: CuFeS2
Reference: Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Muscovite var: Gilbertite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Orthoclase
Formula: K(AlSi3O8)
Reference: Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), pp. 108.
Pharmacosiderite
Formula: KFe3+4(AsO4)3(OH)4 · 6-7H2O
Reference: No reference listed
Pyrite
Formula: FeS2
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
Quartz
Formula: SiO2
Reference: Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Quartz var: Milky Quartz
Formula: SiO2
Reference: P Haas collection
Scorodite
Formula: Fe3+AsO4 · 2H2O
Reference: No reference listed
Tenorite
Formula: CuO
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
Topaz
Formula: Al2(SiO4)(F,OH)2
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
Reference: No reference listed
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: No reference listed
'Wolframite'
Formula: (Fe2+)WO4 to (Mn2+)WO4
Reference: Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), pp. 108.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Arsenopyrite'2.EB.20FeAsS
'Bornite'2.BA.15Cu5FeS4
'Chalcocite'2.BA.05Cu2S
'Chalcopyrite'2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
'Cassiterite'4.DB.05SnO2
Quartz4.DA.05SiO2
var: Milky Quartz4.DA.05SiO2
Tenorite4.AB.10CuO
Group 8 - Phosphates, Arsenates and Vanadates
Pharmacosiderite8.DK.10KFe3+4(AsO4)3(OH)4 · 6-7H2O
Scorodite8.CD.10Fe3+AsO4 · 2H2O
Torbernite8.EB.05Cu(UO2)2(PO4)2 · 12H2O
Group 9 - Silicates
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Gilbertite9.EC.15KAl2(AlSi3O10)(OH)2
Orthoclase9.FA.30K(AlSi3O8)
Topaz9.AF.35Al2(SiO4)(F,OH)2
Unclassified Minerals, Rocks, etc.
Tourmaline-A(D3)G6(T6O18)(BO3)3X3Z
Wolframite-(Fe2+)WO4 to (Mn2+)WO4

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
AX
Tenorite4.2.3.1CuO
AX2
Cassiterite4.4.1.5SnO2
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Torbernite40.2a.13.1Cu(UO2)2(PO4)2 · 12H2O
(AB)5(XO4)2·xH2O
Scorodite40.4.1.3Fe3+AsO4 · 2H2O
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)5(XO4)3Zq·xH2O
Pharmacosiderite42.8.1a.1KFe3+4(AsO4)3(OH)4 · 6-7H2O
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
Topaz52.3.1.1Al2(SiO4)(F,OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Orthoclase76.1.1.1K(AlSi3O8)
Unclassified Minerals, Rocks, etc.
Muscovite
var: Gilbertite
-KAl2(AlSi3O10)(OH)2
Quartz
var: Milky Quartz
-SiO2
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4

List of minerals for each chemical element

HHydrogen
H Muscovite (var: Gilbertite)KAl2(AlSi3O10)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
H ScoroditeFe3+AsO4 · 2H2O
H TopazAl2(SiO4)(F,OH)2
H TorberniteCu(UO2)2(PO4)2 · 12H2O
BBoron
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
OOxygen
O CassiteriteSnO2
O Muscovite (var: Gilbertite)KAl2(AlSi3O10)(OH)2
O Quartz (var: Milky Quartz)SiO2
O MuscoviteKAl2(AlSi3O10)(OH)2
O OrthoclaseK(AlSi3O8)
O PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
O QuartzSiO2
O ScoroditeFe3+AsO4 · 2H2O
O TenoriteCuO
O TopazAl2(SiO4)(F,OH)2
O TorberniteCu(UO2)2(PO4)2 · 12H2O
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O Wolframite(Fe2+)WO4 to (Mn2+)WO4
FFluorine
F TopazAl2(SiO4)(F,OH)2
AlAluminium
Al Muscovite (var: Gilbertite)KAl2(AlSi3O10)(OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al OrthoclaseK(AlSi3O8)
Al TopazAl2(SiO4)(F,OH)2
SiSilicon
Si Muscovite (var: Gilbertite)KAl2(AlSi3O10)(OH)2
Si Quartz (var: Milky Quartz)SiO2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si OrthoclaseK(AlSi3O8)
Si QuartzSiO2
Si TopazAl2(SiO4)(F,OH)2
PPhosphorus
P TorberniteCu(UO2)2(PO4)2 · 12H2O
SSulfur
S ArsenopyriteFeAsS
S BorniteCu5FeS4
S ChalcociteCu2S
S ChalcopyriteCuFeS2
S PyriteFeS2
KPotassium
K Muscovite (var: Gilbertite)KAl2(AlSi3O10)(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
K OrthoclaseK(AlSi3O8)
K PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
MnManganese
Mn Wolframite(Fe2+)WO4 to (Mn2+)WO4
FeIron
Fe ArsenopyriteFeAsS
Fe BorniteCu5FeS4
Fe ChalcopyriteCuFeS2
Fe PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
Fe PyriteFeS2
Fe ScoroditeFe3+AsO4 · 2H2O
Fe Wolframite(Fe2+)WO4 to (Mn2+)WO4
CuCopper
Cu BorniteCu5FeS4
Cu ChalcociteCu2S
Cu ChalcopyriteCuFeS2
Cu TenoriteCuO
Cu TorberniteCu(UO2)2(PO4)2 · 12H2O
AsArsenic
As ArsenopyriteFeAsS
As PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
As ScoroditeFe3+AsO4 · 2H2O
SnTin
Sn CassiteriteSnO2
WTungsten
W Wolframite(Fe2+)WO4 to (Mn2+)WO4
UUranium
U TorberniteCu(UO2)2(PO4)2 · 12H2O

Geochronology

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

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Early Carboniferous
323.2 - 358.9 Ma



ID: 3192903
Paleozoic sedimentary rocks

Age: Mississippian (323.2 - 358.9 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Late Devonian
358.9 - 382.7 Ma



ID: 2033495
Upper Devonian Rocks (Undifferentiated)

Age: Late Devonian (358.9 - 382.7 Ma)

Lithology: Mudstone, siltstone and sandstone

Reference: British Geological Survey. DiGMapGB-625. British Geological Survey ©NERC. [23]

Late Devonian
358.9 - 382.7 Ma



ID: 3135052
Late Devonian claystone

Age: Late Devonian (358.9 - 382.7 Ma)

Lithology: Claystone

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
- Rocks & Minerals: 19:8;
- B. Atkinson: Mining Sites in Cornwall, Vol. 2, Dyllansow Truran (1994)


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