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Wheal Mary Ann, Menheniot, Cornwall, England, UKi
Regional Level Types
Wheal Mary AnnMine (Inactive)
MenheniotCivil Parish
CornwallCounty
EnglandConstituent Country
UKCountry

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Key
Latitude & Longitude (WGS84):
50° 26' 41'' North , 4° 24' 41'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SX288634
Locality type:
Mine (Inactive) - last checked 2019
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Menheniot782 (2017)0.5km
Liskeard9,237 (2017)3.9km
Pensilva1,663 (2017)6.5km
Dobwalls1,418 (2017)7.6km
Landrake1,115 (2017)8.9km


On a lead lode extending into Wheal Trelawny. Worked 1843 - 1875, producing 30,000 tons galena and over a million ounces of silver.

Not to be confused with 'West Wheal Mary Ann' locality.

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Commodity List

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


Mineral List


21 valid minerals.

Detailed Mineral List:

Baryte
Formula: BaSO4
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Henwood, W.J. (1871): Transactions of the Royal Geological Society of Cornwall 8(1), 699-722
Calcite
Formula: CaCO3
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Henwood, W.J. (1871): Transactions of the Royal Geological Society of Cornwall 8(1), 699-722
Cerussite
Formula: PbCO3
Reference: Henwood, W.J. (1871): Transactions of the Royal Geological Society of Cornwall 8(1), 699-722; Golley & Williams, 1995, 15 - "Cornish Mineral Reference Manual"
Chalcopyrite
Formula: CuFeS2
Reference: Henwood, W.J. (1871): Transactions of the Royal Geological Society of Cornwall 8(1), 699-722
Cuprite
Formula: Cu2O
Reference: S.Rust Collection
Dundasite
Formula: PbAl2(CO3)2(OH)4 · H2O
Reference: Tony Aldworth Collection/Chris Jewson Collection; Tony Aldworth Collection/Chris Jewson Collection
Fluorapatite
Formula: Ca5(PO4)3F
Reference: M. J. Spencer Collection. Self-collected 4/4/2010
Fluorapatite var: Carbonate-rich Fluorapatite
Formula: Ca5(PO4,CO3)3(F,O)
Reference: M. J. Spencer Collection. Self-collected 4/4/2010
Fluorite
Formula: CaF2
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Henwood, W.J. (1871): Transactions of the Royal Geological Society of Cornwall 8(1), 699-722
Galena
Formula: PbS
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Henwood, W.J. (1871): Transactions of the Royal Geological Society of Cornwall 8(1), 699-722
Gypsum
Formula: CaSO4 · 2H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Gypsum var: Selenite
Formula: CaSO4 · 2H2O
Reference: No reference listed
Langite
Formula: Cu4(SO4)(OH)6 · 2H2O
Reference: Tony Aldworth Collection
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Henwood, W.J. (1871): Transactions of the Royal Geological Society of Cornwall 8(1), 699-722
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Tony Aldworth Collection
Marcasite
Formula: FeS2
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Mimetite
Formula: Pb5(AsO4)3Cl
Reference: Tony Aldworth Collection
Phosphohedyphane
Formula: Ca2Pb3(PO4)3Cl
Reference: Tony Aldworth Collection/Chris Jewson Collection
Pyrite
Formula: FeS2
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Henwood, W.J. (1871): Transactions of the Royal Geological Society of Cornwall 8(1), 699-722
Pyromorphite
Formula: Pb5(PO4)3Cl
Reference: Henwood, W.J. (1871): Transactions of the Royal Geological Society of Cornwall 8(1), 699-722
Quartz
Formula: SiO2
Reference: Henwood, W.J. (1871): Transactions of the Royal Geological Society of Cornwall 8(1), 699-722
Quartz var: Chalcedony
Formula: SiO2
Reference: [MinRec 4:95]
Quartz var: Rock Crystal
Formula: SiO2
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Siderite
Formula: FeCO3
Reference: Tony Aldworth Collection
Sphalerite
Formula: ZnS
Reference: Henwood, W.J. (1871): Transactions of the Royal Geological Society of Cornwall 8(1), 699-722
Wulfenite
Formula: Pb(MoO4)
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Marcasite2.EB.10aFeS2
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Cuprite4.AA.10Cu2O
Quartz4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
var: Rock Crystal4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Cerussite5.AB.15PbCO3
Dundasite5.DB.10PbAl2(CO3)2(OH)4 · H2O
Malachite5.BA.10Cu2(CO3)(OH)2
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Gypsum7.CD.40CaSO4 · 2H2O
var: Selenite7.CD.40CaSO4 · 2H2O
Langite7.DD.10Cu4(SO4)(OH)6 · 2H2O
Wulfenite7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
var: Carbonate-rich Fluorapatite8.BN.05Ca5(PO4,CO3)3(F,O)
Mimetite8.BN.05Pb5(AsO4)3Cl
Phosphohedyphane8.BN.05Ca2Pb3(PO4)3Cl
Pyromorphite8.BN.05Pb5(PO4)3Cl
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Cerussite14.1.3.4PbCO3
Siderite14.1.1.3FeCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 16b - HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
Dundasite16b.2.1.1PbAl2(CO3)2(OH)4 · H2O
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 31 - HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
(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)
Mimetite41.8.4.2Pb5(AsO4)3Cl
Pyromorphite41.8.4.1Pb5(PO4)3Cl
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Wulfenite48.1.3.1Pb(MoO4)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Gypsum
var: Selenite
-CaSO4 · 2H2O
'Limonite'-(Fe,O,OH,H2O)
Phosphohedyphane-Ca2Pb3(PO4)3Cl
Quartz
var: Chalcedony
-SiO2
var: Rock Crystal-SiO2

List of minerals for each chemical element

HHydrogen
H GypsumCaSO4 · 2H2O
H Gypsum (var: Selenite)CaSO4 · 2H2O
H LangiteCu4(SO4)(OH)6 · 2H2O
H Limonite(Fe,O,OH,H2O)
H MalachiteCu2(CO3)(OH)2
H DundasitePbAl2(CO3)2(OH)4 · H2O
CCarbon
C CalciteCaCO3
C CerussitePbCO3
C SideriteFeCO3
C MalachiteCu2(CO3)(OH)2
C DundasitePbAl2(CO3)2(OH)4 · H2O
C Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
OOxygen
O BaryteBaSO4
O CalciteCaCO3
O CerussitePbCO3
O Quartz (var: Chalcedony)SiO2
O GypsumCaSO4 · 2H2O
O WulfenitePb(MoO4)
O QuartzSiO2
O Gypsum (var: Selenite)CaSO4 · 2H2O
O PyromorphitePb5(PO4)3Cl
O MimetitePb5(AsO4)3Cl
O LangiteCu4(SO4)(OH)6 · 2H2O
O SideriteFeCO3
O Limonite(Fe,O,OH,H2O)
O MalachiteCu2(CO3)(OH)2
O PhosphohedyphaneCa2Pb3(PO4)3Cl
O DundasitePbAl2(CO3)2(OH)4 · H2O
O Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
O Quartz (var: Rock Crystal)SiO2
O CupriteCu2O
O FluorapatiteCa5(PO4)3F
FFluorine
F FluoriteCaF2
F Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
F FluorapatiteCa5(PO4)3F
AlAluminium
Al DundasitePbAl2(CO3)2(OH)4 · H2O
SiSilicon
Si Quartz (var: Chalcedony)SiO2
Si QuartzSiO2
Si Quartz (var: Rock Crystal)SiO2
PPhosphorus
P PyromorphitePb5(PO4)3Cl
P PhosphohedyphaneCa2Pb3(PO4)3Cl
P Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
P FluorapatiteCa5(PO4)3F
SSulfur
S BaryteBaSO4
S GalenaPbS
S GypsumCaSO4 · 2H2O
S MarcasiteFeS2
S Gypsum (var: Selenite)CaSO4 · 2H2O
S PyriteFeS2
S LangiteCu4(SO4)(OH)6 · 2H2O
S SphaleriteZnS
S ChalcopyriteCuFeS2
ClChlorine
Cl PyromorphitePb5(PO4)3Cl
Cl MimetitePb5(AsO4)3Cl
Cl PhosphohedyphaneCa2Pb3(PO4)3Cl
CaCalcium
Ca CalciteCaCO3
Ca FluoriteCaF2
Ca GypsumCaSO4 · 2H2O
Ca Gypsum (var: Selenite)CaSO4 · 2H2O
Ca PhosphohedyphaneCa2Pb3(PO4)3Cl
Ca Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
Ca FluorapatiteCa5(PO4)3F
FeIron
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe SideriteFeCO3
Fe Limonite(Fe,O,OH,H2O)
Fe ChalcopyriteCuFeS2
CuCopper
Cu LangiteCu4(SO4)(OH)6 · 2H2O
Cu MalachiteCu2(CO3)(OH)2
Cu ChalcopyriteCuFeS2
Cu CupriteCu2O
ZnZinc
Zn SphaleriteZnS
AsArsenic
As MimetitePb5(AsO4)3Cl
MoMolybdenum
Mo WulfenitePb(MoO4)
BaBarium
Ba BaryteBaSO4
PbLead
Pb CerussitePbCO3
Pb GalenaPbS
Pb WulfenitePb(MoO4)
Pb PyromorphitePb5(PO4)3Cl
Pb MimetitePb5(AsO4)3Cl
Pb PhosphohedyphaneCa2Pb3(PO4)3Cl
Pb DundasitePbAl2(CO3)2(OH)4 · H2O

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 IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
UK

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