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Wheal Jane (Falmouth Consolidated Mines), Baldhu, Kea, Cornwall, England, UK
Wheal Jane (Falmouth Consolidated Mines), Chacewater, Cornwall, England, UK

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Latitude & Longitude (WGS84): 50° 14' 53'' North , 5° 6' 36'' West
Latitude & Longitude (decimal): 50.24831,-5.11009
GeoHash:G#: gbumgeqvw
UK National Grid Reference:SW783434
Locality type:Mine
Köppen climate type:Cfb : Temperate oceanic climate


An old tin and copper mine, which also produced minor amounts of arsenic, lead, zinc, tungsten, silver, pyrite and ochre. The mine is said to have already been in operation in 1740. It closed around 1875, but tributers continued work above adit at a small scale until 1893. In 1906, Falmouth Consolidated Mines were formed by amalgamation of Wheal Jane, West Wheal Jane, Wheal Widden and Nangiles Mine. Falmouth and Sperries Mine (together with Wheal Hope and East Wheal Falmouth) was also included, but not much work was done in that sett. Operations concentrated in Wheal Jane and West Wheal Jane sections. After the group was dissolved in 1916, tributers continued working the Wheal Jane section until 1919. In 1939, Wheal Jane and West Wheal Jane were taken over by Mount Wellington Mine. Some exploration work was carried out in West Wheal Jane section, followed by the retimbering of Beecher's Shaft and commencing a crosscut to access the tin reserves that had been proven north of it. Though, when Mount Wellington Mine closed in 1941, this project had not been finished.

In the mid 1960s, the mines were acquired by Consolidated Gold Fields Ltd. During the following years, intensive exploration works were carried out, and in 1969, it was decided to re-open them under the name Wheal Jane. Clemow's Shaft of West Wheal Jane section (SW772426) was widened and deepened, and a new shaft (No. 2 Shaft) was sunk to a depth of 366 m. Subsequently, an underground crusher station was constructed and full surface support services were installed. The initial production covered 10% of the UK's tin consumption, saving £4 million a year in imports. When the project was re-evaluated during the 1970s, Consolidated Gold Fields Ltd found it uneconomical and with the threat of closure, the government paid to keep the pumps working. The mine was subsequently sold to Carnon Consolidated Ltd, a subsidiary of Rio Tinto Zinc, who redeveloped the mine and the mill. Later on, the company passed its commitment to a management consortium. In 1991, the mine was found to be unviable and the pumps were switched off.

There is a difference between the modern mine and the old mine in that modern Wheal Jane includes all of the mines of the former Falmouth Consolidated group, whereas old Wheal Jane represents its northeastern section only. As a consequence, specimens collected at Wheal Jane in relatively modern times may come from any of the mines in the sett (unless otherwise noted), whereas only the very old specimens come from Wheal Jane proper. For the same reason, a separate list of minerals for old Wheal Jane is impossible to compose, and we also have not created a separate entry for the old mine in the database. The grid reference, however, refers to old Wheal Jane. The buildings of the modern mine are located between West Wheal Jane and Wheal Widden.

Old Wheal Jane, West Wheal Jane, Wheal Widden and the Nangiles Mine worked lodes in the footwall of an elvan dyke, which trends in norteastern direction from Mount Wellington Mine across the Carnon valley and can be traced for a distance of about 2 miles to the railway line south of Mount Prickle. In Wheal Jane section, Main lode was opened up by a series of shafts along the strike of the lode (SW779428, Dunstan's Shaft, to SW784430, Gilbert's Shaft) which crosses the road leading from Baldhu to Carnon Downs NE of Treva farm. The coordinates mark the engine house ruin at Giles's Shaft (New Shaft), which also formed part of the sett.

From 1847 to 1895, Wheal Jane produced 3,832 tons of black tin, 740 tons of 4% copper ore, 586 tons of zinc ore, 302 tons of 68% lead ore, 33,340 tons of pyrite, 243 tons of arsenic, 86 tons of arsenopyrite, 100 tons of ochre, 2,921 oz of silver, and 3,666 tons of iron ore from the gossan. From 1906 to 1915, the Falmouth Consolidated group produced 860 tons of black tin and 160 tons of arsenic, mainly from Wheal Jane section. Another 55.5 tons of black tin were raised from Wheal Jane section between 1916 and 1919. In 1983 and 1984, Wheal Jane produced 285,246 tons and 295,093 tons of tin ore, respectively, grading at about 0.6% of tin.

Alternative Label Names

This is a list of additional names that have been recorded for mineral labels associated with this locality in the minID database. This may include previous versions of the locality name hierarchy from mindat.org, data entry errors, and it may also include unconfirmed sublocality names or other names that can only be matched to this level.

Wheal Jane (Falmouth Consolidated Mines), Baldhu, Kea, Camborne - Redruth - St Day District, Cornwall, England, UK

Regions containing this locality

Devon and Cornwall metalliferous mining district, England, UK

Mining District - 760 mineral species & varietal names listed

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

Mining District - 258 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

38 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

Annabergite
Formula: Ni3(AsO4)2 · 8H2O
Reference: Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), pp. 108.
Arsenopyrite
Formula: FeAsS
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, p. 431.
Baryte
Formula: BaSO4
Reference: [Embrey & Symes, 1987, 51 - "Minerals of Cornwall and Devon"]
Beraunite
Formula: Fe2+Fe3+5(PO4)4(OH)5 · 6H2O
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.
Bismuthinite
Formula: Bi2S3
Reference: Lapis 11(2), 34-38 (1986)
Cacoxenite
Formula: Fe3+24AlO6(PO4)17(OH)12 · 75H2O
Reference: Lapis 11(2), 34-38 (1986); Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Cassiterite
Formula: SnO2
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, p. 431.
Cerussite
Formula: PbCO3
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.
Chalcanthite
Formula: CuSO4 · 5H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Chalcopyrite
Formula: CuFeS2
Reference: No reference listed; Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, p. 431.
Childrenite
Formula: Fe2+Al(PO4)(OH)2 · H2O
Reference: Braithwaite, R.S.W., and Cooper, B.V. (1982): Mineralogical Magazine 46, 119-126
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Clinochlore var: Ripidolite
Formula: (Mg,Fe,Al)6(Si,Al)4O10(OH)8
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Crandallite
Formula: CaAl3(PO4)(PO3OH)(OH)6
Reference: Min.Rec.: 20(5): 395.; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Cronstedtite
Formula: Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4
Reference: Hey's Mineral Index 3rd ed.; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Devilline
Formula: CaCu4(SO4)2(OH)6 · 3H2O
Reference: No reference listed
Fluorapatite
Formula: Ca5(PO4)3F
Reference: No reference listed
Fluorapatite var: Carbonate-rich Fluorapatite
Formula: Ca5(PO4,CO3)3(F,O)
Reference: No reference listed
Fluorite
Formula: CaF2
Reference: Min.Rec.: 20(5): 395.; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Galena
Formula: PbS
Reference: Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), pp. 108.
Graphite
Formula: C
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Hisingerite
Formula: Fe3+2(Si2O5)(OH)4 · 2H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Hydrozincite
Formula: Zn5(CO3)2(OH)6
Reference: G.Curtis collection
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: No reference listed
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: No reference listed
Ludlamite (TL)
Formula: Fe2+3(PO4)2 · 4H2O
Reference: Phil. Mag., 5th ser. (1877): 3, 52; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 953; Embrey & Symes (1987) "Minerals of Cornwall and Devon": 112.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Marcasite
Formula: FeS2
Reference: Steve Rust collection; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Melanterite
Formula: Fe2+(H2O)6SO4 · H2O
Reference: Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), pp. 108.
Nickeline
Formula: NiAs
Reference: Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), pp. 108.
Pentlandite
Formula: (FexNiy)Σ9S8
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: 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.
Pyrite
Formula: FeS2
Reference: Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), pp. 108.
Pyrrhotite
Formula: Fe7S8
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Quartz
Formula: SiO2
Reference: Braithwaite, R.S.W., and Cooper, B.V. (1982): Mineralogical Magazine 46, 119-126
Quartz var: Amethyst
Formula: SiO2
Reference: [Golley & Williams, 1995 - "Cornish Mineral Reference Manual", 51; Min.Rec.: 20(5): 395.]
Quartz var: Citrine
Formula: SiO2
Reference: [Golley & Williams, 1995 - "Cornish Mineral Reference Manual", 51]
Quartz var: Rock Crystal
Formula: SiO2
Reference: Lapis 11(2), 34-38 (1986)
Siderite
Formula: FeCO3
Reference: Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), pp. 108.
Sphalerite
Formula: ZnS
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.
Stannite
Formula: Cu2FeSnS4
Reference: Mark Wrigley specimen; Mark Wigley specimen; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Tennantite
Formula: Cu6[Cu4(Fe,Zn)2]As4S13
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Vivianite
Formula: Fe2+3(PO4)2 · 8H2O
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; 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), 108 pp.
'Wolframite'
Formula: (Fe2+)WO4 to (Mn2+)WO4
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Wurtzite
Formula: (Zn,Fe)S
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Bismuthinite2.DB.05Bi2S3
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Marcasite2.EB.10aFeS2
Nickeline2.CC.05NiAs
Pentlandite2.BB.15(FexNiy)Σ9S8
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Sphalerite2.CB.05aZnS
Stannite2.CB.15aCu2FeSnS4
Tennantite2.GB.05Cu6[Cu4(Fe,Zn)2]As4S13
Wurtzite2.CB.45(Zn,Fe)S
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Cassiterite4.DB.05SnO2
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Citrine4.DA.05SiO2
var: Rock Crystal4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Cerussite5.AB.15PbCO3
Hydrozincite5.BA.15Zn5(CO3)2(OH)6
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Chalcanthite7.CB.20CuSO4 · 5H2O
Devilline7.DD.30CaCu4(SO4)2(OH)6 · 3H2O
Melanterite7.CB.35Fe2+(H2O)6SO4 · H2O
Group 8 - Phosphates, Arsenates and Vanadates
Annabergite8.CE.40Ni3(AsO4)2 · 8H2O
Beraunite8.DC.27Fe2+Fe3+5(PO4)4(OH)5 · 6H2O
Cacoxenite8.DC.40Fe3+24AlO6(PO4)17(OH)12 · 75H2O
Childrenite8.DD.20Fe2+Al(PO4)(OH)2 · H2O
Crandallite8.BL.10CaAl3(PO4)(PO3OH)(OH)6
Fluorapatite8.BN.05Ca5(PO4)3F
var: Carbonate-rich Fluorapatite8.BN.05Ca5(PO4,CO3)3(F,O)
Ludlamite (TL)8.CD.20Fe2+3(PO4)2 · 4H2O
Pharmacosiderite8.DK.10KFe3+4(AsO4)3(OH)4 · 6-7H2O
Vivianite8.CE.40Fe2+3(PO4)2 · 8H2O
Group 9 - Silicates
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
var: Ripidolite9.EC.55(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Cronstedtite9.ED.15Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4
Hisingerite9.ED.10Fe3+2(Si2O5)(OH)4 · 2H2O
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Unclassified Minerals, Rocks, etc.
Limonite-(Fe,O,OH,H2O)
Wolframite-(Fe2+)WO4 to (Mn2+)WO4

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 9:8
Pentlandite2.7.1.1(FexNiy)Σ9S8
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Nickeline2.8.11.1NiAs
Pyrrhotite2.8.10.1Fe7S8
Sphalerite2.8.2.1ZnS
Wurtzite2.8.7.1(Zn,Fe)S
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
Stannite2.9.2.1Cu2FeSnS4
AmBnXp, with (m+n):p = 2:3
Bismuthinite2.11.2.3Bi2S3
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
3 <ø < 4
Tennantite3.3.6.2Cu6[Cu4(Fe,Zn)2]As4S13
Group 4 - SIMPLE OXIDES
AX2
Cassiterite4.4.1.5SnO2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Cerussite14.1.3.4PbCO3
Siderite14.1.1.3FeCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Hydrozincite16a.4.1.1Zn5(CO3)2(OH)6
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Chalcanthite29.6.7.1CuSO4 · 5H2O
Melanterite29.6.10.1Fe2+(H2O)6SO4 · H2O
Group 31 - HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)5(XO4)2Zq·xH2O
Devilline31.6.1.1CaCu4(SO4)2(OH)6 · 3H2O
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
A3(XO4)2·xH2O
Annabergite40.3.6.4Ni3(AsO4)2 · 8H2O
Ludlamite (TL)40.3.5.1Fe2+3(PO4)2 · 4H2O
Vivianite40.3.6.1Fe2+3(PO4)2 · 8H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
var: Carbonate-rich Fluorapatite41.8.1.4Ca5(PO4,CO3)3(F,O)
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq·xH2O
Childrenite42.7.1.1Fe2+Al(PO4)(OH)2 · H2O
Crandallite42.7.3.1CaAl3(PO4)(PO3OH)(OH)6
(AB)5(XO4)3Zq·xH2O
Pharmacosiderite42.8.1a.1KFe3+4(AsO4)3(OH)4 · 6-7H2O
(AB)3(XO4)2Zq·xH2O
Beraunite42.11.16.1Fe2+Fe3+5(PO4)4(OH)5 · 6H2O
Miscellaneous
Cacoxenite42.13.5.1Fe3+24AlO6(PO4)17(OH)12 · 75H2O
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Cronstedtite71.1.4.7Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4
Hisingerite71.1.5.2Fe3+2(Si2O5)(OH)4 · 2H2O
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
Clinochlore
var: Ripidolite
-(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Kaolinite-Al2(Si2O5)(OH)4
'Limonite'-(Fe,O,OH,H2O)
Quartz
var: Amethyst
-SiO2
var: Citrine-SiO2
var: Rock Crystal-SiO2
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4

List of minerals for each chemical element

HHydrogen
H AnnabergiteNi3(AsO4)2 · 8H2O
H BerauniteFe2+Fe53+(PO4)4(OH)5 · 6H2O
H CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
H ChalcanthiteCuSO4 · 5H2O
H ChildreniteFe2+Al(PO4)(OH)2 · H2O
H ClinochloreMg5Al(AlSi3O10)(OH)8
H CrandalliteCaAl3(PO4)(PO3OH)(OH)6
H CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
H DevillineCaCu4(SO4)2(OH)6 · 3H2O
H HisingeriteFe23+(Si2O5)(OH)4 · 2H2O
H HydrozinciteZn5(CO3)2(OH)6
H KaoliniteAl2(Si2O5)(OH)4
H Limonite(Fe,O,OH,H2O)
H LudlamiteFe32+(PO4)2 · 4H2O
H MelanteriteFe2+(H2O)6SO4 · H2O
H PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
H Clinochlore (var: Ripidolite)(Mg,Fe,Al)6(Si,Al)4O10(OH)8
H VivianiteFe32+(PO4)2 · 8H2O
CCarbon
C Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
C CerussitePbCO3
C GraphiteC
C HydrozinciteZn5(CO3)2(OH)6
C SideriteFeCO3
OOxygen
O Quartz (var: Amethyst)SiO2
O AnnabergiteNi3(AsO4)2 · 8H2O
O BaryteBaSO4
O BerauniteFe2+Fe53+(PO4)4(OH)5 · 6H2O
O CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
O Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
O CassiteriteSnO2
O CerussitePbCO3
O ChalcanthiteCuSO4 · 5H2O
O ChildreniteFe2+Al(PO4)(OH)2 · H2O
O Quartz (var: Citrine)SiO2
O ClinochloreMg5Al(AlSi3O10)(OH)8
O CrandalliteCaAl3(PO4)(PO3OH)(OH)6
O CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
O DevillineCaCu4(SO4)2(OH)6 · 3H2O
O FluorapatiteCa5(PO4)3F
O HisingeriteFe23+(Si2O5)(OH)4 · 2H2O
O HydrozinciteZn5(CO3)2(OH)6
O KaoliniteAl2(Si2O5)(OH)4
O Limonite(Fe,O,OH,H2O)
O LudlamiteFe32+(PO4)2 · 4H2O
O MagnetiteFe2+Fe23+O4
O MelanteriteFe2+(H2O)6SO4 · H2O
O PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
O QuartzSiO2
O Clinochlore (var: Ripidolite)(Mg,Fe,Al)6(Si,Al)4O10(OH)8
O Quartz (var: Rock Crystal)SiO2
O SideriteFeCO3
O VivianiteFe32+(PO4)2 · 8H2O
O Wolframite(Fe2+)WO4 to (Mn2+)WO4
FFluorine
F Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
F FluorapatiteCa5(PO4)3F
F FluoriteCaF2
MgMagnesium
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Mg Clinochlore (var: Ripidolite)(Mg,Fe,Al)6(Si,Al)4O10(OH)8
AlAluminium
Al CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Al ChildreniteFe2+Al(PO4)(OH)2 · H2O
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Al KaoliniteAl2(Si2O5)(OH)4
Al Clinochlore (var: Ripidolite)(Mg,Fe,Al)6(Si,Al)4O10(OH)8
SiSilicon
Si Quartz (var: Amethyst)SiO2
Si Quartz (var: Citrine)SiO2
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
Si HisingeriteFe23+(Si2O5)(OH)4 · 2H2O
Si KaoliniteAl2(Si2O5)(OH)4
Si QuartzSiO2
Si Clinochlore (var: Ripidolite)(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Si Quartz (var: Rock Crystal)SiO2
PPhosphorus
P BerauniteFe2+Fe53+(PO4)4(OH)5 · 6H2O
P CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
P Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
P ChildreniteFe2+Al(PO4)(OH)2 · H2O
P CrandalliteCaAl3(PO4)(PO3OH)(OH)6
P FluorapatiteCa5(PO4)3F
P LudlamiteFe32+(PO4)2 · 4H2O
P VivianiteFe32+(PO4)2 · 8H2O
SSulfur
S ArsenopyriteFeAsS
S BaryteBaSO4
S BismuthiniteBi2S3
S ChalcanthiteCuSO4 · 5H2O
S ChalcopyriteCuFeS2
S DevillineCaCu4(SO4)2(OH)6 · 3H2O
S GalenaPbS
S MarcasiteFeS2
S MelanteriteFe2+(H2O)6SO4 · H2O
S Pentlandite(FexNiy)Σ9S8
S PyriteFeS2
S PyrrhotiteFe7S8
S SphaleriteZnS
S StanniteCu2FeSnS4
S TennantiteCu6[Cu4(Fe,Zn)2]As4S13
S Wurtzite(Zn,Fe)S
KPotassium
K PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
CaCalcium
Ca Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
Ca CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Ca DevillineCaCu4(SO4)2(OH)6 · 3H2O
Ca FluorapatiteCa5(PO4)3F
Ca FluoriteCaF2
MnManganese
Mn Wolframite(Fe2+)WO4 to (Mn2+)WO4
FeIron
Fe ArsenopyriteFeAsS
Fe BerauniteFe2+Fe53+(PO4)4(OH)5 · 6H2O
Fe CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Fe ChalcopyriteCuFeS2
Fe ChildreniteFe2+Al(PO4)(OH)2 · H2O
Fe CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
Fe HisingeriteFe23+(Si2O5)(OH)4 · 2H2O
Fe Limonite(Fe,O,OH,H2O)
Fe LudlamiteFe32+(PO4)2 · 4H2O
Fe MagnetiteFe2+Fe23+O4
Fe MarcasiteFeS2
Fe MelanteriteFe2+(H2O)6SO4 · H2O
Fe Pentlandite(FexNiy)Σ9S8
Fe PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
Fe PyriteFeS2
Fe PyrrhotiteFe7S8
Fe Clinochlore (var: Ripidolite)(Mg,Fe,Al)6(Si,Al)4O10(OH)8
Fe SideriteFeCO3
Fe StanniteCu2FeSnS4
Fe VivianiteFe32+(PO4)2 · 8H2O
Fe Wolframite(Fe2+)WO4 to (Mn2+)WO4
NiNickel
Ni AnnabergiteNi3(AsO4)2 · 8H2O
Ni NickelineNiAs
Ni Pentlandite(FexNiy)Σ9S8
CuCopper
Cu ChalcanthiteCuSO4 · 5H2O
Cu ChalcopyriteCuFeS2
Cu DevillineCaCu4(SO4)2(OH)6 · 3H2O
Cu StanniteCu2FeSnS4
Cu TennantiteCu6[Cu4(Fe,Zn)2]As4S13
ZnZinc
Zn HydrozinciteZn5(CO3)2(OH)6
Zn SphaleriteZnS
Zn Wurtzite(Zn,Fe)S
AsArsenic
As AnnabergiteNi3(AsO4)2 · 8H2O
As ArsenopyriteFeAsS
As NickelineNiAs
As PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
As TennantiteCu6[Cu4(Fe,Zn)2]As4S13
SnTin
Sn CassiteriteSnO2
Sn StanniteCu2FeSnS4
BaBarium
Ba BaryteBaSO4
WTungsten
W Wolframite(Fe2+)WO4 to (Mn2+)WO4
PbLead
Pb CerussitePbCO3
Pb GalenaPbS
BiBismuth
Bi BismuthiniteBi2S3

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

Permian
251.902 - 298.9 Ma



ID: 3186762
Paleozoic intrusive rocks

Age: Phanerozoic (251.902 - 298.9 Ma)

Lithology: Intrusive igneous 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)
- Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 953.
- Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 428-431.
- Mining Annual Review (1985): 485.
- Lapis (1986): 11(2): 34-38.
- Mineralogical Record (1990): 20(5): 395.
- Golley & Williams (1995): Cornish Mineral Reference Manual, p. 51.

External Links


Localities in this Region
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