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South Wheal Frances, South Frances United Mines, Basset Mines, Carnkie, Carn Brea, Cornwall, England, UK

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Latitude & Longitude (WGS84): 50° 12' 30'' North , 5° 15' 6'' West
Latitude & Longitude (decimal): 50.20861,-5.25194
GeoHash:G#: gbum8kpwk
UK National Grid Reference:SW681394
Locality type:Mine
Köppen climate type:Cfb : Temperate oceanic climate


This mine was eventually incorporated into the Basset group of mines.
Ref.: Golley & Williams, 1995, 38 - "Cornish Mineral Reference Manual"; Rocks & Min.: 17:130; P.G. Embrey, R.F. Symes: "Minerals of Cornwall and Devon", 1987, p. 45

Large group of impressive buildings at Marriot's Shaft (open and circular), including engine house, dry, stamps, boiler houses, etc. Nearby are other engine houses. Dumps largely removed and grassed-over.

Regions containing this locality

Devon and Cornwall metalliferous mining district, England, UK

District - 752 mineral species & varietal names listed

Camborne-Redruth and St Day Mining District, Cornwall, England, UK

Mining District - 257 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


12 valid minerals.

Detailed Mineral List:

Arsenopyrite
Formula: FeAsS
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 341-351.
Bornite
Formula: Cu5FeS4
Reference: [www.thamesvalleyminerals.com]
Cassiterite
Formula: SnO2
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 341-351.
Chalcanthite
Formula: CuSO4 · 5H2O
Reference: Royal Cornwall Polytechnic Society (1870): 38. Annual Report, pp. 30-31; Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), pp. 108.
Chalcopyrite
Formula: CuFeS2
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Smyth, W.M., Reeks, T., and Rudler, F.W. (1864): A Catalogue of the Mineral Collections in the Museum of Practical Geology. HMSO Publications (London), 190 pp.; Collins, J.H. (1892): A Handbook to the Mineralogy of Cornwall and Devon, 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
'Chlorite Group'
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 341-351.
Copper
Formula: Cu
Reference: Smyth, W.M., Reeks, T., and Rudler, F.W. (1864): A Catalogue of the Mineral Collections in the Museum of Practical Geology. HMSO Publications (London), 190 pp.; 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.
Cuprite
Formula: Cu2O
Reference: Smyth, W.M., Reeks, T., and Rudler, F.W. (1864): A Catalogue of the Mineral Collections in the Museum of Practical Geology. HMSO Publications (London), 190 pp.; 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.
Cuprite var: Chalcotrichite
Formula: Cu2O
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Libethenite
Formula: Cu2(PO4)(OH)
Reference: Smyth, W.M., Reeks, T., and Rudler, F.W. (1864): A Catalogue of the Mineral Collections in the Museum of Practical Geology. HMSO Publications (London), 190pp.; 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.; Braithwaite, R. S. W., & Ryback, G. (1994): Mineralogical Magazine, 58(392), 449-454; Rocks & Min. 17, 130
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Braithwaite, R. S. W., & Ryback, G. (1994). Reichenbachite from Cornwall and Portugal. Mineralogical Magazine, 58(392), 449-454.
Pseudomalachite
Formula: Cu5(PO4)2(OH)4
Reference: BMS Database; Braithwaite, R. S. W., & Ryback, G. (1994). Reichenbachite from Cornwall and Portugal. Mineralogical Magazine, 58(392), 449-454.
Pyrite
Formula: FeS2
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 341-351.
Quartz
Formula: SiO2
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 341-351.
Quartz var: Amethyst
Formula: SiO2
Reference: Rory Donaldson collection
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 341-351.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Bornite2.BA.15Cu5FeS4
Chalcopyrite2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Cassiterite4.DB.05SnO2
Cuprite4.AA.10Cu2O
var: Chalcotrichite4.AA.10Cu2O
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Chalcanthite7.CB.20CuSO4 · 5H2O
Group 8 - Phosphates, Arsenates and Vanadates
Libethenite8.BB.30Cu2(PO4)(OH)
Pseudomalachite8.BD.05Cu5(PO4)2(OH)4
Unclassified Minerals, Rocks, etc.
Chlorite Group-
Tourmaline-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Group 2 - SULFIDES
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
A2X
Cuprite4.1.1.1Cu2O
AX2
Cassiterite4.4.1.5SnO2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Chalcanthite29.6.7.1CuSO4 · 5H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)5(XO4)2Zq
Pseudomalachite41.4.3.1Cu5(PO4)2(OH)4
A2(XO4)Zq
Libethenite41.6.6.2Cu2(PO4)(OH)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
Cuprite
var: Chalcotrichite
-Cu2O
Quartz
var: Amethyst
-SiO2
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H ChalcanthiteCuSO4 · 5H2O
H LibetheniteCu2(PO4)(OH)
H MalachiteCu2(CO3)(OH)2
H PseudomalachiteCu5(PO4)2(OH)4
BBoron
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
CCarbon
C MalachiteCu2(CO3)(OH)2
OOxygen
O Quartz (var: Amethyst)SiO2
O CassiteriteSnO2
O ChalcanthiteCuSO4 · 5H2O
O Cuprite (var: Chalcotrichite)Cu2O
O CupriteCu2O
O LibetheniteCu2(PO4)(OH)
O MalachiteCu2(CO3)(OH)2
O PseudomalachiteCu5(PO4)2(OH)4
O QuartzSiO2
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
SiSilicon
Si Quartz (var: Amethyst)SiO2
Si QuartzSiO2
PPhosphorus
P LibetheniteCu2(PO4)(OH)
P PseudomalachiteCu5(PO4)2(OH)4
SSulfur
S ArsenopyriteFeAsS
S BorniteCu5FeS4
S ChalcanthiteCuSO4 · 5H2O
S ChalcopyriteCuFeS2
S PyriteFeS2
FeIron
Fe ArsenopyriteFeAsS
Fe BorniteCu5FeS4
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
CuCopper
Cu BorniteCu5FeS4
Cu ChalcanthiteCuSO4 · 5H2O
Cu ChalcopyriteCuFeS2
Cu Cuprite (var: Chalcotrichite)Cu2O
Cu CopperCu
Cu CupriteCu2O
Cu LibetheniteCu2(PO4)(OH)
Cu MalachiteCu2(CO3)(OH)2
Cu PseudomalachiteCu5(PO4)2(OH)4
AsArsenic
As ArsenopyriteFeAsS
SnTin
Sn CassiteriteSnO2

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]

Ordovician
443.8 - 485.4 Ma



ID: 3144611
Ordovician granite

Age: Ordovician (443.8 - 485.4 Ma)

Lithology: Granite group

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


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