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Wheal Drea, Botallack, St Just, Cornwall, England, UKi
Regional Level Types
Wheal DreaMine (Inactive)
BotallackVillage
St JustCivil Parish
CornwallCounty
EnglandConstituent Country
UKCountry

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Latitude & Longitude (WGS84):
50° 7' 55'' North , 5° 41' 15'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW365324
Locality type:
Mine (Inactive) - last checked 2019
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
St Just1,957 (2017)1.1km
Madron626 (2017)8.7km
Penzance19,872 (2017)10.8km
Mousehole697 (2017)11.9km
Marazion1,294 (2017)15.2km


The mine is well known for his excellent siderite specimens.

Regions containing this locality

Eurasian PlateTectonic Plate
British IslesGroup of Islands
Devon and Cornwall metalliferous mining district, England, UKMining District
St Just Mining Region, Cornwall, England, UKRegion
St Just Mining District, Cornwall, England, UKMining District

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


16 valid minerals.

Detailed Mineral List:

Baryte
Formula: BaSO4
Reference: Golley, P. & Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
Calcite
Formula: CaCO3
Reference: collected by Richard de Nul
Cassiterite
Formula: SnO2
Reference: collected by Richard de Nul
Chalcocite
Formula: Cu2S
Reference: collected by Richard de Nul
Chalcopyrite
Formula: CuFeS2
Reference: collected by Richard de Nul
Copper
Formula: Cu
Reference: collected by Richard de Nul
Fluorapatite
Formula: Ca5(PO4)3F
Reference: Collection Richard De Nul
Fluorapatite var: Carbonate-rich Fluorapatite
Formula: Ca5(PO4,CO3)3(F,O)
Reference: Collection Richard De Nul
Fluorite
Formula: CaF2
Reference: Collection Richard De Nul
Goethite
Formula: α-Fe3+O(OH)
Reference: No reference listed
Hematite
Formula: Fe2O3
Reference: No reference listed
'K Feldspar'
Reference: Collection Richard De Nul
'K Feldspar var: Adularia'
Formula: KAlSi3O8
Reference: Collection Richard De Nul
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: No reference listed
Malachite
Formula: Cu2(CO3)(OH)2
Reference: No reference listed
Manganite
Formula: Mn3+O(OH)
Reference: P Haas - collected 2009
Quartz
Formula: SiO2
Reference: No reference listed
Quartz var: Amethyst
Formula: SiO2
Reference: P Haas (2007) - collected from the dump
Quartz var: Chalcedony
Formula: SiO2
Reference: No reference listed
Quartz var: Smoky Quartz
Formula: SiO2
Reference: collected by M Perry (St Just)
Rhodochrosite
Formula: MnCO3
Reference: collected by G Moffatt, Pendeen
Siderite
Formula: FeCO3
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. 106.
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Reference: Collection Richard De Nul
Vivianite
Formula: Fe2+3(PO4)2 · 8H2O
Habit: Elongated prismatic
Colour: Green
Reference: Collected by David Clough 8 May 2005; Confirmed by Natural History Museum (London) 8 July 2005; Report published in British Micromount Society Newsletter No. 71 - November 2005; 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. 106.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Cassiterite4.DB.05SnO2
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Manganite4.FD.15Mn3+O(OH)
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Rhodochrosite5.AB.05MnCO3
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
var: Carbonate-rich Fluorapatite8.BN.05Ca5(PO4,CO3)3(F,O)
Vivianite8.CE.40Fe2+3(PO4)2 · 8H2O
Unclassified Minerals, Rocks, etc.
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Limonite'-(Fe,O,OH,H2O)
'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
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
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)
Manganite6.1.3.1Mn3+O(OH)
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Rhodochrosite14.1.1.4MnCO3
Siderite14.1.1.3FeCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
A3(XO4)2·xH2O
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 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'K Feldspar'-
'var: Adularia'-KAlSi3O8
'Limonite'-(Fe,O,OH,H2O)
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 ManganiteMn3+O(OH)
H VivianiteFe32+(PO4)2 · 8H2O
BBoron
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
CCarbon
C SideriteFeCO3
C MalachiteCu2(CO3)(OH)2
C CalciteCaCO3
C RhodochrositeMnCO3
C Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
OOxygen
O BaryteBaSO4
O Quartz (var: Smoky Quartz)SiO2
O SideriteFeCO3
O Quartz (var: Chalcedony)SiO2
O Goethiteα-Fe3+O(OH)
O HematiteFe2O3
O Limonite(Fe,O,OH,H2O)
O MalachiteCu2(CO3)(OH)2
O QuartzSiO2
O CassiteriteSnO2
O CalciteCaCO3
O RhodochrositeMnCO3
O K Feldspar (var: Adularia)KAlSi3O8
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
O Quartz (var: Amethyst)SiO2
O ManganiteMn3+O(OH)
O FluorapatiteCa5(PO4)3F
O VivianiteFe32+(PO4)2 · 8H2O
FFluorine
F FluoriteCaF2
F Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
F FluorapatiteCa5(PO4)3F
AlAluminium
Al K Feldspar (var: Adularia)KAlSi3O8
SiSilicon
Si Quartz (var: Smoky Quartz)SiO2
Si Quartz (var: Chalcedony)SiO2
Si QuartzSiO2
Si K Feldspar (var: Adularia)KAlSi3O8
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
Si Quartz (var: Amethyst)SiO2
PPhosphorus
P Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
P FluorapatiteCa5(PO4)3F
P VivianiteFe32+(PO4)2 · 8H2O
SSulfur
S BaryteBaSO4
S ChalcociteCu2S
S ChalcopyriteCuFeS2
KPotassium
K K Feldspar (var: Adularia)KAlSi3O8
CaCalcium
Ca CalciteCaCO3
Ca FluoriteCaF2
Ca Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
Ca FluorapatiteCa5(PO4)3F
MnManganese
Mn RhodochrositeMnCO3
Mn ManganiteMn3+O(OH)
FeIron
Fe SideriteFeCO3
Fe Goethiteα-Fe3+O(OH)
Fe HematiteFe2O3
Fe Limonite(Fe,O,OH,H2O)
Fe ChalcopyriteCuFeS2
Fe VivianiteFe32+(PO4)2 · 8H2O
CuCopper
Cu MalachiteCu2(CO3)(OH)2
Cu CopperCu
Cu ChalcociteCu2S
Cu ChalcopyriteCuFeS2
SnTin
Sn CassiteriteSnO2
BaBarium
Ba BaryteBaSO4

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: 3191499
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]

Permian - Carboniferous
251.902 - 358.9 Ma



ID: 2028219
Unnamed Igneous Intrusion, Carboniferous To Permian

Age: Phanerozoic (251.902 - 358.9 Ma)

Lithology: Felsic-rock

Reference: British Geological Survey. DiGMapGB-625. British Geological Survey ©NERC. [23]

Ordovician
443.8 - 485.4 Ma



ID: 3130462
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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