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Geevor Mine, Pendeen, St Just, Cornwall, England, UKi
Regional Level Types
Geevor MineMine (Inactive)
PendeenVillage
St JustCivil Parish
CornwallCounty
EnglandConstituent Country
UKCountry

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Key
Latitude & Longitude (WGS84):
50° 9' 6'' North , 5° 40' 30'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW375345
Locality type:
Mine (Inactive) - last checked 2019
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
St Just1,957 (2017)3.1km
Madron626 (2017)8.1km
Penzance19,872 (2017)10.5km
Mousehole697 (2017)12.3km
Marazion1,294 (2017)14.5km
Other/historical names associated with this locality:
Geevor Tin Mine
Other Languages:
French:
Mine d'étain de Geevor, Pendeen, St Just in Penwith, Cornouailles, Angleterre, Royaume-Uni
Cornish:
Bal Sten Gever, Boskaswal Wartha, Lannyust, Kernow, Pow Sows, Ruwvaneth Unys
Polish:
Kopalnia Geevor, Pendeen, St Just in Penwith, Kornwalia, Anglia, Wielka Brytania


One of the last deep tin mines in Cornwall, this mine closed in 1992 and has now been converted into a museum and tourist attraction. Victory shaft and the mine buildings are situated on the site of the former North Levant Mine, which was incorporated with the Geevor sett in 1920. The original Geevor Mine sett lay about 250m further southeast (closer to Pendeen village).

An extensive history of the mine is recorded in "GEEVOR", by Cyril Noall.

Tin and copper have been mined from the general area of Geevor since at least the late 1700s. It was originally a small enterprise known as Wheal an Giver, "a piece of ground occupied by goats". The area was worked under the name of North Levant Mine until 1891 when it closed. During the 1880s there had been up to 176 workers at the mine, but in the ten years after North Levant's closure, the site saw only intermittent activity by a few miners.

The Wethered shaft (named for Oliver Wethered, one of the founders of the mine) was begun in 1909 and initial development occurred around it. By 1919, the works were moving west toward the coastline and the Victory shaft (named to celebrate the end of the First World War) was sunk about 540 metres to the north-west.

By the 1970s Geevor's sett covered an area of about three square miles and included Boscaswell Downs mine, Pendeen Consols, and Levant mine. In 1985 the International Tin Council failed and there was a dramatic fall in the price of the metal. The mine struggled on for a few years but closed in 1990, and the pumps were switched off in May 1991 allowing the workings to flood. The mine is not geologically exhausted of tin, it is exhausted of tin that is recoverable economically.

Notes on the mineral list:

Botallackite has not been reported from the Geevor lodes. All specimens reputedly found at Geevor mine came from the Levant workings (mostly from South lode) with which Geevor is connected underground.

Select Mineral List Type

Standard Detailed Strunz Dana 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

55 valid minerals. 1 erroneous literature entry.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Allanite-(Ce)
Formula: {CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Andersonite
Formula: Na2Ca(UO2)(CO3)3 · 6H2O
Reference: Elton, N.J. and Hooper, J.J. (1992): Mineralogical Magazine, 56(1), 124-125.
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Reference: No reference listed
Aragonite
Formula: CaCO3
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Arsenic
Formula: As
Reference: [Golley & Williams, 1995, 5 - "Cornish Mineral Reference Manual"]
Atacamite
Formula: Cu2(OH)3Cl
Reference: MINERALOGICAL MAGAZINE, (1993), VOL 57, PP. 352-354
Autunite
Formula: Ca(UO2)2(PO4)2 · 11H2O
Reference: No reference listed
Becquerelite
Formula: Ca(UO2)6O4(OH)6 · 8H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Bismuth
Formula: Bi
Reference: Mineralogical Magazine 1965 34 : 159-176.
Bornite
Formula: Cu5FeS4
Reference: Mineralogical Magazine 1965 34 : 159-176.
Botallackite
Formula: Cu2(OH)3Cl
Description: Botallackites reputedly found at Geevor all came from the Levant workings, with which Geevor is connected underground.
Reference: Peter Haas; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Brochantite
Formula: Cu4(SO4)(OH)6
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Calcite
Formula: CaCO3
Reference: No reference listed
Calcite var: Manganoan Calcite
Formula: (Ca,Mn)CO3
Reference: No reference listed
Cassiterite
Formula: SnO2
Reference: Mineralogical Magazine 1965 34 : 159-176.
Chalcanthite
Formula: CuSO4 · 5H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Chalcocite
Formula: Cu2S
Reference: [Golley & Williams, 1995, 15 - "Cornish Mineral Reference Manual"]
Chalcopyrite
Formula: CuFeS2
Reference: Mineralogical Magazine 1965 34 : 159-176.
Chalcopyrite var: Blister Copper
Formula: CuFeS2
Reference: P Haas collection; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Chamosite
Formula: (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Chamosite var: Thuringite
Formula: (Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
Reference: No reference listed
'Chlorite Group'
Reference: Mineralogical Magazine 1965 34 : 159-176.
Coffinite
Formula: U(SiO4) · nH2O
Reference: [Golley & Williams, 1995, "Cornish Mineral Reference Manual", 18]; Mineralogical Magazine 1965 34 : 159-176.
Compreignacite
Formula: K2(UO2)6O4(OH)6 · 7H2O
Reference: P Haas
Connellite
Formula: Cu19(SO4)(OH)32Cl4 · 3H2O
Reference: [Golley & Williams, 1995, 19 - "Cornish Mineral Reference Manual"]
Copper
Formula: Cu
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Covellite
Formula: CuS
Reference: Mineralogical Magazine 1965 34 : 159-176.
Cuprite
Formula: Cu2O
Reference: No reference listed
Cuprosklodowskite
Formula: Cu(UO2)2(SiO3OH]2 · 6H2O
Reference: [Golley & Williams, 1995, 21 - "Cornish Mineral Reference Manual"]
Devilline
Formula: CaCu4(SO4)2(OH)6 · 3H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Djurleite
Formula: Cu31S16
Reference: P Haas collection
Dolomite
Formula: CaMg(CO3)2
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Fluorapatite
Formula: Ca5(PO4)3F
Colour: Grey-brown, reddish brown
Reference: P Haas collection
Fluorapatite var: Carbonate-rich Fluorapatite
Formula: Ca5(PO4,CO3)3(F,O)
Colour: Grey-brown, reddish brown
Reference: P Haas collection
Fluorite
Formula: CaF2
Reference: Dale foster Collection
Goethite
Formula: α-Fe3+O(OH)
Reference: No reference listed
Gypsum
Formula: CaSO4 · 2H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Hematite
Formula: Fe2O3
Reference: Mineralogical Magazine 1965 34 : 159-176.
Johannite
Formula: Cu(UO2)2(SO4)2(OH)2 · 8H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: No reference listed
'K Feldspar'
Reference: Mineralogical Magazine 1965 34 : 159-176.
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Langite
Formula: Cu4(SO4)(OH)6 · 2H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Laumontite
Formula: CaAl2Si4O12 · 4H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Malachite
Formula: Cu2(CO3)(OH)2
Reference: No reference listed
Marcasite
Formula: FeS2
Reference: No reference listed
Melanterite
Formula: Fe2+(H2O)6SO4 · H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Metazeunerite
Formula: Cu(UO2)2(AsO4)2 · 8H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Description: Known as specimens from the 17th level of the Coronation lode where they consisy of a white layer on chlorite. My specimen is from the Richard Williams collection and has passed trough R. Barstow's hands.
Reference: Paul De Bondt collection
Natrozippeite
Formula: Na5(UO2)8(SO4)4O5(OH)3 · 12H2O
Reference: [Golley & Williams, 1995, 57 - "Cornish Mineral Reference Manual"]; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Neotocite
Formula: (Mn,Fe,Mg)SiO3 · H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Opal
Formula: SiO2 · nH2O
Reference: Carne, J. (1822): Transactions of the Royal Geological Society of Cornwall 2, 290-358
Opal var: Fire Opal
Formula: SiO2 · nH2O
Reference: Carne, J. (1822): Transactions of the Royal Geological Society of Cornwall 2, 49-128
Opal var: Isopyre
Reference: Carne, J. (1822): Transactions of the Royal Geological Society of Cornwall 2, 290-358
Paratacamite
Formula: Cu3(Cu,Zn)(OH)6Cl2
Reference: [Golley & Williams, 1995, 46 - "Cornish Mineral Reference Manual"]
Pyrite
Formula: FeS2
Reference: Mineralogical Magazine 1965 34 : 159-176.
Quartz
Formula: SiO2
Localities: Reported from at least 6 localities in this region.
Reference: Mineralogical Magazine 1965 34 : 159-176.
Quartz var: Amethyst
Formula: SiO2
Reference: P Haas collection
Quartz var: Chalcedony
Formula: SiO2
Reference: Paul De Bondt collection
Quartz var: Eisenkiesel
Formula: SiO2
Reference: P Haas collection
Quartz var: Jasper
Rhodochrosite
Formula: MnCO3
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Roquesite
Formula: CuInS2
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications; Brougha, C., Pricharda, H. M., Nearyb, C., Pearcea, J. A., & Kozlu-Erdalc, H. (2009). SA62 6JY. cThe General Directorate of Mineral Research and Exploration (MTA), Mineralogy and Petrography, TR-06520 Ankara-Turkey. The presence of Pt, Pd and Rh (PPGE) and Os, Ir and. Applied Earth Science (Trans. Inst. Min. Metall. B), 118(1), 21.
Schröckingerite
Formula: NaCa3(UO2)(CO3)3(SO4)F · 10H2O
Reference: Elton, N.J. and Hooper, J.J. (1992): Mineralogical Magazine, 56(1), 124-125.
Siderite
Formula: FeCO3
Reference: P Haas collection
Sphalerite
Formula: ZnS
Reference: No reference listed
'Tennantite'
Formula: Cu6(Cu4X2)As4S12S
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Reference: Mineralogical Magazine 1965 34 : 159-176.
Uraninite
Formula: UO2
Reference: Mineralogical Magazine 1965 34 : 159-176.
Uraninite var: Pitchblende
Formula: UO2
Reference: Mineralogical Magazine 1965 34 : 159-176.
Uranopilite
Formula: (UO2)6(SO4)O2(OH)6 · 14H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Wittichenite
Formula: Cu3BiS3
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
Arsenic1.CA.05As
Bismuth1.CA.05Bi
Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
Bornite2.BA.15Cu5FeS4
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
var: Blister Copper2.CB.10aCuFeS2
Covellite2.CA.05aCuS
Djurleite2.BA.05Cu31S16
Marcasite2.EB.10aFeS2
Pyrite2.EB.05aFeS2
Roquesite2.CB.10aCuInS2
Sphalerite2.CB.05aZnS
'Tennantite'2.GB.05Cu6(Cu4X2)As4S12S
Wittichenite2.GA.20Cu3BiS3
Group 3 - Halides
Atacamite3.DA.10aCu2(OH)3Cl
Botallackite ?3.DA.10bCu2(OH)3Cl
Connellite3.DA.25Cu19(SO4)(OH)32Cl4 · 3H2O
Fluorite3.AB.25CaF2
Paratacamite3.DA.10cCu3(Cu,Zn)(OH)6Cl2
Group 4 - Oxides and Hydroxides
Becquerelite4.GB.10Ca(UO2)6O4(OH)6 · 8H2O
Cassiterite4.DB.05SnO2
Compreignacite4.GB.05K2(UO2)6O4(OH)6 · 7H2O
Cuprite4.AA.10Cu2O
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Opal4.DA.10SiO2 · nH2O
var: Fire Opal4.DA.10SiO2 · nH2O
var: Isopyre4.DA.10SiO2 · nH2O
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
var: Eisenkiesel4.DA.05SiO2
var: Jasper4.DA.05SiO2
Uraninite4.DL.05UO2
var: Pitchblende4.DL.05UO2
Group 5 - Nitrates and Carbonates
Andersonite5.ED.30Na2Ca(UO2)(CO3)3 · 6H2O
Aragonite5.AB.15CaCO3
Calcite5.AB.05CaCO3
var: Manganoan Calcite5.AB.05(Ca,Mn)CO3
Dolomite5.AB.10CaMg(CO3)2
Malachite5.BA.10Cu2(CO3)(OH)2
Rhodochrosite5.AB.05MnCO3
Schröckingerite5.EG.05NaCa3(UO2)(CO3)3(SO4)F · 10H2O
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Brochantite7.BB.25Cu4(SO4)(OH)6
Chalcanthite7.CB.20CuSO4 · 5H2O
Devilline7.DD.30CaCu4(SO4)2(OH)6 · 3H2O
Gypsum7.CD.40CaSO4 · 2H2O
Johannite7.EB.05Cu(UO2)2(SO4)2(OH)2 · 8H2O
Langite7.DD.10Cu4(SO4)(OH)6 · 2H2O
Melanterite7.CB.35Fe2+(H2O)6SO4 · H2O
Natrozippeite7.EC.05Na5(UO2)8(SO4)4O5(OH)3 · 12H2O
Uranopilite7.EA.05(UO2)6(SO4)O2(OH)6 · 14H2O
Group 8 - Phosphates, Arsenates and Vanadates
Autunite8.EB.05Ca(UO2)2(PO4)2 · 11H2O
Fluorapatite8.BN.05Ca5(PO4)3F
var: Carbonate-rich Fluorapatite8.BN.05Ca5(PO4,CO3)3(F,O)
Metazeunerite8.EB.10Cu(UO2)2(AsO4)2 · 8H2O
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
Allanite-(Ce)9.BG.05b{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Chamosite9.EC.55(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
var: Thuringite9.EC.55(Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
Coffinite9.AD.30U(SiO4) · nH2O
Cuprosklodowskite9.AK.10Cu(UO2)2(SiO3OH]2 · 6H2O
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Laumontite9.GB.10CaAl2Si4O12 · 4H2O
Montmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Neotocite9.ED.20(Mn,Fe,Mg)SiO3 · H2O
Unclassified Minerals, Rocks, etc.
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Chlorite Group'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Tourmaline'-A(D3)G6(Si6O18)(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
Semi-metals and non-metals
Arsenic1.3.1.1As
Bismuth1.3.1.4Bi
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
Djurleite2.4.7.2Cu31S16
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmXp, with m:p = 1:1
Covellite2.8.12.1CuS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
Roquesite2.9.1.4CuInS2
AmBnXp, with (m+n):p = 1:2
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
3 <ø < 4
'Tennantite'3.3.6.2Cu6(Cu4X2)As4S12S
ø = 3
Wittichenite3.4.8.1Cu3BiS3
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
A2X3
Hematite4.3.1.2Fe2O3
AX2
Cassiterite4.4.1.5SnO2
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
AX6O19·xH2O
Becquerelite5.7.1.2Ca(UO2)6O4(OH)6 · 8H2O
Compreignacite5.7.1.1K2(UO2)6O4(OH)6 · 7H2O
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 10 - OXYHALIDES AND HYDROXYHALIDES
A2(O,OH)3Xq
Atacamite10.1.1.1Cu2(OH)3Cl
Botallackite ?10.1.3.1Cu2(OH)3Cl
Paratacamite10.1.2.1Cu3(Cu,Zn)(OH)6Cl2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Rhodochrosite14.1.1.4MnCO3
Siderite14.1.1.3FeCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 15 - HYDRATED NORMAL CARBONATES
AmBn(XO3)p·xH2O, with (m+n):p > 1:1
Andersonite15.2.5.1Na2Ca(UO2)(CO3)3 · 6H2O
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 17 - COMPOUND CARBONATES
Miscellaneous
Schröckingerite17.1.5.1NaCa3(UO2)(CO3)3(SO4)F · 10H2O
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Chalcanthite29.6.7.1CuSO4 · 5H2O
Gypsum29.6.3.1CaSO4 · 2H2O
Melanterite29.6.10.1Fe2+(H2O)6SO4 · H2O
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)m(XO4)pZq, where m:p>2:1
Brochantite30.1.3.1Cu4(SO4)(OH)6
Group 31 - HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)m(XO4)pZq·xH2O, where m:p > 6:1
Connellite31.1.1.1Cu19(SO4)(OH)32Cl4 · 3H2O
(AB)6(XO4)Zq·xH2O
Uranopilite31.2.6.1(UO2)6(SO4)O2(OH)6 · 14H2O
(AB)4(XO4)Zq·xH2O
Langite31.4.3.1Cu4(SO4)(OH)6 · 2H2O
(AB)5(XO4)2Zq·xH2O
Devilline31.6.1.1CaCu4(SO4)2(OH)6 · 3H2O
(AB)3(XO4)2Zq·xH2O
Johannite31.8.2.1Cu(UO2)2(SO4)2(OH)2 · 8H2O
Miscellaneous
Natrozippeite31.10.4.2Na5(UO2)8(SO4)4O5(OH)3 · 12H2O
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Autunite40.2a.1.1Ca(UO2)2(PO4)2 · 11H2O
Metazeunerite40.2a.14.2Cu(UO2)2(AsO4)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 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Coffinite51.5.2.4U(SiO4) · nH2O
Group 53 - NESOSILICATES Insular SiO4 Groups and Other Anions or Complex Cations
Insular SiO4 Groups and Other Anions of Complex Cations with (UO2)
Cuprosklodowskite53.3.1.4Cu(UO2)2(SiO3OH]2 · 6H2O
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Allanite-(Ce)58.2.1a.1{CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Neotocite71.1.5.4(Mn,Fe,Mg)SiO3 · H2O
Sheets of 6-membered rings with 2:1 clays
Montmorillonite71.3.1a.2(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Chamosite71.4.1.7(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Laumontite77.1.1.4CaAl2Si4O12 · 4H2O
Unclassified Minerals, Mixtures, etc.
'Apatite'-Ca5(PO4)3(Cl/F/OH)
Aragonite-CaCO3
Calcite
var: Manganoan Calcite
-(Ca,Mn)CO3
Chalcopyrite
var: Blister Copper
-CuFeS2
Chamosite
var: Thuringite
-(Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
'Chlorite Group'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
Kaolinite-Al2(Si2O5)(OH)4
Opal
var: Fire Opal
-SiO2 · nH2O
var: Isopyre-SiO2 · nH2O
Quartz
var: Amethyst
-SiO2
var: Chalcedony-SiO2
var: Eisenkiesel-SiO2
var: Jasper-SiO2
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z
Uraninite
var: Pitchblende
-UO2

List of minerals for each chemical element

HHydrogen
H AndersoniteNa2Ca(UO2)(CO3)3 · 6H2O
H AutuniteCa(UO2)2(PO4)2 · 11H2O
H BrochantiteCu4(SO4)(OH)6
H ChalcanthiteCuSO4 · 5H2O
H Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
H CoffiniteU(SiO4) · nH2O
H ConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
H CuprosklodowskiteCu(UO2)2(SiO3OH]2 · 6H2O
H DevillineCaCu4(SO4)2(OH)6 · 3H2O
H GypsumCaSO4 · 2H2O
H JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
H LangiteCu4(SO4)(OH)6 · 2H2O
H LaumontiteCaAl2Si4O12 · 4H2O
H MelanteriteFe2+(H2O)6SO4 · H2O
H MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
H Neotocite(Mn,Fe,Mg)SiO3 · H2O
H ParatacamiteCu3(Cu,Zn)(OH)6Cl2
H SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
H NatrozippeiteNa5(UO2)8(SO4)4O5(OH)3 · 12H2O
H Chamosite (var: Thuringite)(Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
H Uranopilite(UO2)6(SO4)O2(OH)6 · 14H2O
H Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
H ApatiteCa5(PO4)3(Cl/F/OH)
H Goethiteα-Fe3+O(OH)
H KaoliniteAl2(Si2O5)(OH)4
H MalachiteCu2(CO3)(OH)2
H BecquereliteCa(UO2)6O4(OH)6 · 8H2O
H CompreignaciteK2(UO2)6O4(OH)6 · 7H2O
H Opal (var: Fire Opal)SiO2 · nH2O
H OpalSiO2 · nH2O
H AtacamiteCu2(OH)3Cl
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H BotallackiteCu2(OH)3Cl
BBoron
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
CCarbon
C AndersoniteNa2Ca(UO2)(CO3)3 · 6H2O
C AragoniteCaCO3
C CalciteCaCO3
C Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
C DolomiteCaMg(CO3)2
C Calcite (var: Manganoan Calcite)(Ca,Mn)CO3
C RhodochrositeMnCO3
C SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
C MalachiteCu2(CO3)(OH)2
C SideriteFeCO3
OOxygen
O AlbiteNa(AlSi3O8)
O AndersoniteNa2Ca(UO2)(CO3)3 · 6H2O
O AragoniteCaCO3
O AutuniteCa(UO2)2(PO4)2 · 11H2O
O BrochantiteCu4(SO4)(OH)6
O CalciteCaCO3
O Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
O CassiteriteSnO2
O ChalcanthiteCuSO4 · 5H2O
O Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
O CoffiniteU(SiO4) · nH2O
O ConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
O CupriteCu2O
O CuprosklodowskiteCu(UO2)2(SiO3OH]2 · 6H2O
O DevillineCaCu4(SO4)2(OH)6 · 3H2O
O DolomiteCaMg(CO3)2
O GypsumCaSO4 · 2H2O
O JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
O LangiteCu4(SO4)(OH)6 · 2H2O
O LaumontiteCaAl2Si4O12 · 4H2O
O Calcite (var: Manganoan Calcite)(Ca,Mn)CO3
O MelanteriteFe2+(H2O)6SO4 · H2O
O MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
O Neotocite(Mn,Fe,Mg)SiO3 · H2O
O ParatacamiteCu3(Cu,Zn)(OH)6Cl2
O RhodochrositeMnCO3
O SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
O NatrozippeiteNa5(UO2)8(SO4)4O5(OH)3 · 12H2O
O Chamosite (var: Thuringite)(Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
O UraniniteUO2
O Uranopilite(UO2)6(SO4)O2(OH)6 · 14H2O
O Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
O ApatiteCa5(PO4)3(Cl/F/OH)
O Goethiteα-Fe3+O(OH)
O KaoliniteAl2(Si2O5)(OH)4
O MalachiteCu2(CO3)(OH)2
O BecquereliteCa(UO2)6O4(OH)6 · 8H2O
O QuartzSiO2
O K Feldspar (var: Adularia)KAlSi3O8
O HematiteFe2O3
O SideriteFeCO3
O Quartz (var: Amethyst)SiO2
O CompreignaciteK2(UO2)6O4(OH)6 · 7H2O
O Quartz (var: Eisenkiesel)SiO2
O Uraninite (var: Pitchblende)UO2
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O Opal (var: Fire Opal)SiO2 · nH2O
O OpalSiO2 · nH2O
O Quartz (var: Chalcedony)SiO2
O FluorapatiteCa5(PO4)3F
O AtacamiteCu2(OH)3Cl
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O BotallackiteCu2(OH)3Cl
FFluorine
F Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
F SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
F ApatiteCa5(PO4)3(Cl/F/OH)
F FluoriteCaF2
F FluorapatiteCa5(PO4)3F
NaSodium
Na AlbiteNa(AlSi3O8)
Na AndersoniteNa2Ca(UO2)(CO3)3 · 6H2O
Na SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
Na NatrozippeiteNa5(UO2)8(SO4)4O5(OH)3 · 12H2O
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
MgMagnesium
Mg Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Mg DolomiteCaMg(CO3)2
Mg Neotocite(Mn,Fe,Mg)SiO3 · H2O
Mg Chamosite (var: Thuringite)(Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
AlAluminium
Al AlbiteNa(AlSi3O8)
Al Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Al LaumontiteCaAl2Si4O12 · 4H2O
Al Chamosite (var: Thuringite)(Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
Al Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Al KaoliniteAl2(Si2O5)(OH)4
Al K Feldspar (var: Adularia)KAlSi3O8
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Si CoffiniteU(SiO4) · nH2O
Si CuprosklodowskiteCu(UO2)2(SiO3OH]2 · 6H2O
Si LaumontiteCaAl2Si4O12 · 4H2O
Si Neotocite(Mn,Fe,Mg)SiO3 · H2O
Si Chamosite (var: Thuringite)(Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
Si Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Si KaoliniteAl2(Si2O5)(OH)4
Si QuartzSiO2
Si K Feldspar (var: Adularia)KAlSi3O8
Si Quartz (var: Amethyst)SiO2
Si Quartz (var: Eisenkiesel)SiO2
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
Si Opal (var: Fire Opal)SiO2 · nH2O
Si OpalSiO2 · nH2O
Si Quartz (var: Chalcedony)SiO2
Si Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
PPhosphorus
P AutuniteCa(UO2)2(PO4)2 · 11H2O
P Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
P ApatiteCa5(PO4)3(Cl/F/OH)
P FluorapatiteCa5(PO4)3F
SSulfur
S BorniteCu5FeS4
S BrochantiteCu4(SO4)(OH)6
S ChalcopyriteCuFeS2
S ChalcanthiteCuSO4 · 5H2O
S ChalcociteCu2S
S ConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
S CovelliteCuS
S DevillineCaCu4(SO4)2(OH)6 · 3H2O
S DjurleiteCu31S16
S GypsumCaSO4 · 2H2O
S JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
S LangiteCu4(SO4)(OH)6 · 2H2O
S MelanteriteFe2+(H2O)6SO4 · H2O
S RoquesiteCuInS2
S SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
S NatrozippeiteNa5(UO2)8(SO4)4O5(OH)3 · 12H2O
S SphaleriteZnS
S TennantiteCu6(Cu4X2)As4S12S
S Uranopilite(UO2)6(SO4)O2(OH)6 · 14H2O
S WitticheniteCu3BiS3
S PyriteFeS2
S MarcasiteFeS2
S Chalcopyrite (var: Blister Copper)CuFeS2
ClChlorine
Cl ConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
Cl ParatacamiteCu3(Cu,Zn)(OH)6Cl2
Cl ApatiteCa5(PO4)3(Cl/F/OH)
Cl AtacamiteCu2(OH)3Cl
Cl BotallackiteCu2(OH)3Cl
KPotassium
K K Feldspar (var: Adularia)KAlSi3O8
K CompreignaciteK2(UO2)6O4(OH)6 · 7H2O
CaCalcium
Ca AndersoniteNa2Ca(UO2)(CO3)3 · 6H2O
Ca AragoniteCaCO3
Ca AutuniteCa(UO2)2(PO4)2 · 11H2O
Ca CalciteCaCO3
Ca Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
Ca DevillineCaCu4(SO4)2(OH)6 · 3H2O
Ca DolomiteCaMg(CO3)2
Ca GypsumCaSO4 · 2H2O
Ca LaumontiteCaAl2Si4O12 · 4H2O
Ca Calcite (var: Manganoan Calcite)(Ca,Mn)CO3
Ca SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
Ca Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca BecquereliteCa(UO2)6O4(OH)6 · 8H2O
Ca FluoriteCaF2
Ca FluorapatiteCa5(PO4)3F
Ca Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
MnManganese
Mn Calcite (var: Manganoan Calcite)(Ca,Mn)CO3
Mn Neotocite(Mn,Fe,Mg)SiO3 · H2O
Mn RhodochrositeMnCO3
FeIron
Fe BorniteCu5FeS4
Fe ChalcopyriteCuFeS2
Fe Chamosite(Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Fe MelanteriteFe2+(H2O)6SO4 · H2O
Fe Neotocite(Mn,Fe,Mg)SiO3 · H2O
Fe Chamosite (var: Thuringite)(Fe,Fe,Mg,Al)6(Si,Al)4O10(O,OH)8
Fe Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Fe Goethiteα-Fe3+O(OH)
Fe PyriteFeS2
Fe MarcasiteFeS2
Fe HematiteFe2O3
Fe SideriteFeCO3
Fe Chalcopyrite (var: Blister Copper)CuFeS2
CuCopper
Cu BorniteCu5FeS4
Cu BrochantiteCu4(SO4)(OH)6
Cu ChalcopyriteCuFeS2
Cu ChalcanthiteCuSO4 · 5H2O
Cu ChalcociteCu2S
Cu ConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
Cu CovelliteCuS
Cu CupriteCu2O
Cu CuprosklodowskiteCu(UO2)2(SiO3OH]2 · 6H2O
Cu CopperCu
Cu DevillineCaCu4(SO4)2(OH)6 · 3H2O
Cu DjurleiteCu31S16
Cu JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
Cu LangiteCu4(SO4)(OH)6 · 2H2O
Cu MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
Cu ParatacamiteCu3(Cu,Zn)(OH)6Cl2
Cu RoquesiteCuInS2
Cu TennantiteCu6(Cu4X2)As4S12S
Cu WitticheniteCu3BiS3
Cu MalachiteCu2(CO3)(OH)2
Cu Chalcopyrite (var: Blister Copper)CuFeS2
Cu AtacamiteCu2(OH)3Cl
Cu BotallackiteCu2(OH)3Cl
ZnZinc
Zn ParatacamiteCu3(Cu,Zn)(OH)6Cl2
Zn SphaleriteZnS
AsArsenic
As ArsenicAs
As MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
As TennantiteCu6(Cu4X2)As4S12S
InIndium
In RoquesiteCuInS2
SnTin
Sn CassiteriteSnO2
CeCerium
Ce Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
BiBismuth
Bi WitticheniteCu3BiS3
Bi BismuthBi
UUranium
U AndersoniteNa2Ca(UO2)(CO3)3 · 6H2O
U AutuniteCa(UO2)2(PO4)2 · 11H2O
U CoffiniteU(SiO4) · nH2O
U CuprosklodowskiteCu(UO2)2(SiO3OH]2 · 6H2O
U JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
U MetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
U SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
U NatrozippeiteNa5(UO2)8(SO4)4O5(OH)3 · 12H2O
U UraniniteUO2
U Uranopilite(UO2)6(SO4)O2(OH)6 · 14H2O
U BecquereliteCa(UO2)6O4(OH)6 · 8H2O
U CompreignaciteK2(UO2)6O4(OH)6 · 7H2O
U Uraninite (var: Pitchblende)UO2

Geochronology

Mineralization age: Phanerozoic : 290 ± 7 Ma to ~45 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Cenozoic
  Paleogene
   Eocene
ⓘ Pitchblende~45 MaCoronation Lode, Geevor Mine, Pendeen, St Just, Cornwall, England, UK
ⓘ Coffinite~45 MaCoronation Lode, Geevor Mine, Pendeen, St Just, Cornwall, England, UK
    
  
 Mesozoic
  Triassic
   Late Triassic
ⓘ Uraninite (youngest age)223 ± 5 MaCoronation Lode, Geevor Mine, Pendeen, St Just, Cornwall, England, UK
ⓘ K Feldspar (youngest age)231 ± 4 MaHanging Wall Vein, Geevor Mine, Pendeen, St Just, Cornwall, England, UK
   Middle Triassic
ⓘ K Feldspar (oldest age)244 ± 4 MaHanging Wall Vein, Geevor Mine, Pendeen, St Just, Cornwall, England, UK
    
  
 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
ⓘ Uraninite (oldest age)290 ± 7 MaCoronation Lode, Geevor Mine, Pendeen, St Just, Cornwall, England, UK
ⓘ Emplacement of major plutons~295 MaCornwall, England, UK

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Rocks & Minerals, 22, 1030.
Bureau of Mines Mineral Trade Notes (June 20, 1947) 24(1), 22 [https://babel.hathitrust.org/cgi/pt?id=mdp.39015068575474;view=1up;seq=7].
Elton, N.J. and Hooper, J.J. (1993) Sodium-zippeite from Geevor mine, St Just, Cornwall. Mineralogical Magazine, 57, 352-354.
Elton, N.J. and Hooper, J.J. (1992) Andersonite and Schröckingerite from Geevor mine, Cornwall: two species new to Britain. Mineralogical Magazine, 56(1), 124-125.

External Links


Localities in this Region

Other Regions, Features and Areas containing this locality

British IslesGroup of Islands
Eurasian PlateTectonic Plate
UK

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