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

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Latitude & Longitude (WGS84):
50° 7' 48'' North , 5° 42' 5'' West
Latitude & Longitude (decimal):
50.13018,-5.70149
GRN:
N34W03
UK National Grid Reference:
SW355322
Type:
Mine
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
St Just1,957(2017)1.6km
Madron626(2017)9.7km
Penzance19,872(2017)11.8km
Mousehole697(2017)12.7km
Marazion1,294(2017)16.1km
Mindat Locality ID:
69419
Long-form identifier:
mindat:1:2:69419:4
GUID (UUID V4):
0


NOTE: Wheal Coal is a mis-spelling occasionally encountered on specimen labels.

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Detailed Mineral List:

ⓘArsenopyrite
Formula:FeAsS
ⓘBornite
Formula:Cu5FeS4
Habit: Massive
ⓘCassiterite
Formula:SnO2
ⓘChalcocite
Formula:Cu2S
ⓘChalcopyrite
Formula:CuFeS2
Habit: Massive
ⓘConnellite
Formula:Cu19(SO4)(OH)32Cl4 · 3H2O
ⓘGoethite
Formula:Fe3+O(OH)
ⓘHematite
Formula:Fe2O3
ⓘLangite
Formula:Cu4(SO4)(OH)6 · 2H2O
ⓘLepidocrocite
Formula:Fe3+O(OH)
ⓘ'Limonite'
ⓘMalachite
Formula:Cu2(CO3)(OH)2
ⓘNative Copper
Formula:Cu
Habit: Microscopic grains
Description: Microscopic grains in granite adjacent to copper sulphide-bearing veinlets
ⓘParatacamite ?
Formula:Cu3(Cu,Zn)(OH)6Cl2
Habit: Bipyramidal crystals, less than 1 mm across.
Colour: Dark green
Description: Identified by visual means only. Could also be clinoatacamite.
ⓘQuartz
Formula:SiO2
ⓘQuartz var. Amethyst
Formula:SiO2
ⓘQuartz var. Chalcedony
Formula:SiO2
Colour: tan, brownish white, lemon yellow
ⓘSiderite
Formula:FeCO3
ⓘ'Tourmaline'
Formula:AD3G6(T6O18)(BO3)3X3Z
References:
Charles Smith Collection material, now held in Dale Foster CollectionIdentified by Dale Foster: Visual Identification

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘBornite2.BA.15Cu5FeS4
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘArsenopyrite2.EB.20FeAsS
Group 3 - Halides
ⓘParatacamite ?3.DA.10cCu3(Cu,Zn)(OH)6Cl2
ⓘConnellite3.DA.25Cu19(SO4)(OH)32Cl4 · 3H2O
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘHematite4.CB.05Fe2O3
ⓘQuartz
var. Amethyst		4.DA.05SiO2
ⓘvar. Chalcedony4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘCassiterite4.DB.05SnO2
ⓘLepidocrocite4.FE.15Fe3+O(OH)
Group 5 - Nitrates and Carbonates
ⓘSiderite5.AB.05FeCO3
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘLangite7.DD.10Cu4(SO4)(OH)6 · 2H2O
Unclassified
ⓘ'Limonite'-
ⓘ'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
HⓘConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
HⓘGoethiteFe3+O(OH)
HⓘLangiteCu4(SO4)(OH)6 · 2H2O
HⓘLepidocrociteFe3+O(OH)
HⓘMalachiteCu2(CO3)(OH)2
HⓘParatacamiteCu3(Cu,Zn)(OH)6Cl2
BBoron
BⓘTourmalineAD3G6(T6O18)(BO3)3X3Z
CCarbon
CⓘMalachiteCu2(CO3)(OH)2
CⓘSideriteFeCO3
OOxygen
OⓘQuartz var.AmethystSiO2
OⓘCassiteriteSnO2
OⓘQuartz var.ChalcedonySiO2
OⓘConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
OⓘGoethiteFe3+O(OH)
OⓘHematiteFe2O3
OⓘLangiteCu4(SO4)(OH)6 · 2H2O
OⓘLepidocrociteFe3+O(OH)
OⓘMalachiteCu2(CO3)(OH)2
OⓘParatacamiteCu3(Cu,Zn)(OH)6Cl2
OⓘQuartzSiO2
OⓘSideriteFeCO3
OⓘTourmalineAD3G6(T6O18)(BO3)3X3Z
SiSilicon
SiⓘQuartz var.AmethystSiO2
SiⓘQuartz var.ChalcedonySiO2
SiⓘQuartzSiO2
SSulfur
SⓘArsenopyriteFeAsS
SⓘBorniteCu5FeS4
SⓘChalcopyriteCuFeS2
SⓘChalcociteCu2S
SⓘConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
SⓘLangiteCu4(SO4)(OH)6 · 2H2O
ClChlorine
ClⓘConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
ClⓘParatacamiteCu3(Cu,Zn)(OH)6Cl2
FeIron
FeⓘArsenopyriteFeAsS
FeⓘBorniteCu5FeS4
FeⓘChalcopyriteCuFeS2
FeⓘGoethiteFe3+O(OH)
FeⓘHematiteFe2O3
FeⓘLepidocrociteFe3+O(OH)
FeⓘSideriteFeCO3
CuCopper
CuⓘBorniteCu5FeS4
CuⓘChalcopyriteCuFeS2
CuⓘChalcociteCu2S
CuⓘConnelliteCu19(SO4)(OH)32Cl4 · 3H2O
CuⓘNative CopperCu
CuⓘLangiteCu4(SO4)(OH)6 · 2H2O
CuⓘMalachiteCu2(CO3)(OH)2
CuⓘParatacamiteCu3(Cu,Zn)(OH)6Cl2
ZnZinc
ZnⓘParatacamiteCu3(Cu,Zn)(OH)6Cl2
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

Other Regions, Features and Areas containing this locality

British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
UK

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