SUPPORT US. If mindat.org is important to you, click here to donate to our Fall 2019 fundraiser!
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Wheal Castle, Boswedden Mine (incl. Wheal Praze; Wheal Williams; Yankee Boy Mine), Kenidjack Valley, St Just, Cornwall, England, UKi
Regional Level Types
Wheal CastleMine
Boswedden Mine (incl. Wheal Praze; Wheal Williams; Yankee Boy Mine)Mine
Kenidjack ValleyValley
St JustCivil Parish
CornwallCounty
EnglandConstituent Country
UKCountry

This page is currently not sponsored. Click here to sponsor this page.
Key
Latitude & Longitude (WGS84):
50° 7' 51'' North , 5° 42' 5'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW355323
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
St Just1,957 (2017)1.7km
Madron626 (2017)9.7km
Penzance19,872 (2017)11.8km
Mousehole697 (2017)12.7km
Marazion1,294 (2017)16.2km


No description has been added for this locality. Can you add one?

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


17 valid minerals.

Detailed Mineral List:

Arsenopyrite
Formula: FeAsS
Reference: Carne, J. (1822): Transactions of the Royal Geological Society of Cornwall 2, 290-358
Beryl
Formula: Be3Al2(Si6O18)
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.
Brochantite
Formula: Cu4(SO4)(OH)6
Reference: Paul De Bondt collection
Calcite
Formula: CaCO3
Reference: Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 115
Cassiterite
Formula: SnO2
Reference: Reid, C., Flett, J.S., Wilkinson, B.S.N., Dixon, E.E.L., Pollard, W., and MacAlister, D.A. (1907): The Geology of the Land's End District. HMSO Publications (London), p. 101.
Chalcocite
Formula: Cu2S
Reference: Paul De Bondt collection
Chalcopyrite
Formula: CuFeS2
Reference: Dale Foster Collection
'Chlorite Group'
Reference: P Haas, collected in 2003
Connellite
Formula: Cu19(SO4)(OH)32Cl4 · 3H2O
Reference: Paul De Bondt collection
Dolomite
Formula: CaMg(CO3)2
Reference: Carne, J. (1822): Transactions of the Royal Geological Society of Cornwall 2, 290-358; Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 121; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Fluorapatite
Formula: Ca5(PO4)3F
Reference: Paul De Bondt collection
Fluorapatite var: Carbonate-rich Fluorapatite
Formula: Ca5(PO4,CO3)3(F,O)
Reference: Paul De Bondt collection
Goethite
Formula: α-Fe3+O(OH)
Reference: Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386
Hematite
Formula: Fe2O3
Reference: P Haas collection
Hematite var: Specularite
Formula: Fe2O3
Reference: P Haas collection
'Hornblende'
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
'K Feldspar'
Reference: Carne, J. (1822): Transactions of the Royal Geological Society of Cornwall 2, 290-358
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Reference: Carne, J. (1822): Transactions of the Royal Geological Society of Cornwall 2, 290-358
Langite
Formula: Cu4(SO4)(OH)6 · 2H2O
Reference: Paul De Bondt collection
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Reid, C., Flett, J.S., Wilkinson, B.S.N., Dixon, E.E.L., Pollard, W., and MacAlister, D.A. (1907): The Geology of the Land's End District. HMSO Publications (London), p. 101.
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Paul De Bondt collection
'Mica Group'
Reference: Paul De Bondt collection
Pyrite
Formula: FeS2
Reference: Carne, J. (1822): Transactions of the Royal Geological Society of Cornwall 2, 290-358; Reid, C., Flett, J.S., Wilkinson, B.S.N., Dixon, E.E.L., Pollard, W., and MacAlister, D.A. (1907): The Geology of the Land's End District. HMSO Publications (London), p. 101.
Quartz
Formula: SiO2
Reference: Reid, C., Flett, J.S., Wilkinson, B.S.N., Dixon, E.E.L., Pollard, W., and MacAlister, D.A. (1907): The Geology of the Land's End District. HMSO Publications (London), p. 101.
Quartz var: Amethyst
Formula: SiO2
Reference: Paul De Bondt collection
Quartz var: Chalcedony
Formula: SiO2
Reference: P Haas, collected in 2005
Quartz var: Smoky Quartz
Formula: SiO2
Reference: Paul De Bondt collection
Siderite
Formula: FeCO3
Reference: P Haas, collected in 2005
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Reference: Paul De Bondt collection

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Group 3 - Halides
Connellite3.DA.25Cu19(SO4)(OH)32Cl4 · 3H2O
Group 4 - Oxides and Hydroxides
Cassiterite4.DB.05SnO2
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
var: Specularite4.CB.05Fe2O3
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Malachite5.BA.10Cu2(CO3)(OH)2
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Brochantite7.BB.25Cu4(SO4)(OH)6
Langite7.DD.10Cu4(SO4)(OH)6 · 2H2O
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
var: Carbonate-rich Fluorapatite8.BN.05Ca5(PO4,CO3)3(F,O)
Group 9 - Silicates
Beryl9.CJ.05Be3Al2(Si6O18)
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'Hornblende'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Limonite'-(Fe,O,OH,H2O)
'Mica Group'-
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

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 = 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
A2X3
Hematite4.3.1.2Fe2O3
AX2
Cassiterite4.4.1.5SnO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite14.1.1.3FeCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
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)4(XO4)Zq·xH2O
Langite31.4.3.1Cu4(SO4)(OH)6 · 2H2O
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 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-
Hematite
var: Specularite
-Fe2O3
'Hornblende'-
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Limonite'-(Fe,O,OH,H2O)
'Mica Group'-
Quartz
var: Amethyst
-SiO2
var: Chalcedony-SiO2
var: Smoky Quartz-SiO2
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H Goethiteα-Fe3+O(OH)
H Limonite(Fe,O,OH,H2O)
H MalachiteCu2(CO3)(OH)2
H BrochantiteCu4(SO4)(OH)6
H LangiteCu4(SO4)(OH)6 · 2H2O
H ConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
BeBeryllium
Be BerylBe3Al2(Si6O18)
BBoron
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
CCarbon
C SideriteFeCO3
C DolomiteCaMg(CO3)2
C CalciteCaCO3
C Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
C MalachiteCu2(CO3)(OH)2
OOxygen
O BerylBe3Al2(Si6O18)
O Goethiteα-Fe3+O(OH)
O CassiteriteSnO2
O HematiteFe2O3
O Limonite(Fe,O,OH,H2O)
O K Feldspar (var: Adularia)KAlSi3O8
O SideriteFeCO3
O Quartz (var: Chalcedony)SiO2
O QuartzSiO2
O Hematite (var: Specularite)Fe2O3
O DolomiteCaMg(CO3)2
O CalciteCaCO3
O Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
O Quartz (var: Amethyst)SiO2
O Quartz (var: Smoky Quartz)SiO2
O MalachiteCu2(CO3)(OH)2
O FluorapatiteCa5(PO4)3F
O BrochantiteCu4(SO4)(OH)6
O LangiteCu4(SO4)(OH)6 · 2H2O
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O ConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
FFluorine
F Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
F FluorapatiteCa5(PO4)3F
MgMagnesium
Mg DolomiteCaMg(CO3)2
AlAluminium
Al BerylBe3Al2(Si6O18)
Al K Feldspar (var: Adularia)KAlSi3O8
SiSilicon
Si BerylBe3Al2(Si6O18)
Si K Feldspar (var: Adularia)KAlSi3O8
Si Quartz (var: Chalcedony)SiO2
Si QuartzSiO2
Si Quartz (var: Amethyst)SiO2
Si Quartz (var: Smoky Quartz)SiO2
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
PPhosphorus
P Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
P FluorapatiteCa5(PO4)3F
SSulfur
S PyriteFeS2
S ArsenopyriteFeAsS
S ChalcopyriteCuFeS2
S BrochantiteCu4(SO4)(OH)6
S LangiteCu4(SO4)(OH)6 · 2H2O
S ChalcociteCu2S
S ConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
ClChlorine
Cl ConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
KPotassium
K K Feldspar (var: Adularia)KAlSi3O8
CaCalcium
Ca DolomiteCaMg(CO3)2
Ca CalciteCaCO3
Ca Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
Ca FluorapatiteCa5(PO4)3F
FeIron
Fe Goethiteα-Fe3+O(OH)
Fe HematiteFe2O3
Fe Limonite(Fe,O,OH,H2O)
Fe SideriteFeCO3
Fe Hematite (var: Specularite)Fe2O3
Fe PyriteFeS2
Fe ArsenopyriteFeAsS
Fe ChalcopyriteCuFeS2
CuCopper
Cu MalachiteCu2(CO3)(OH)2
Cu ChalcopyriteCuFeS2
Cu BrochantiteCu4(SO4)(OH)6
Cu LangiteCu4(SO4)(OH)6 · 2H2O
Cu ChalcociteCu2S
Cu ConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
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

External Links


Other Regions, Features and Areas containg this locality

British IslesGroup of Islands
Eurasian PlateTectonic Plate
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.
 
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: November 12, 2019 10:22:57 Page generated: October 17, 2019 11:55:10
Go to top of page