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Wheal Maudlin (Wheal Mawdlin; Wheal Magdalen), Lostwithiel, Cornwall, England, UK

This page kindly sponsored by Ru Smith
Key
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Latitude & Longitude (WGS84): 50° 25' 45'' North , 4° 41' 52'' West
Latitude & Longitude (decimal): 50.42944,-4.69778
GeoHash:G#: gbuwvh7hv
UK National Grid Reference:SX084624
Locality type:Mine
Köppen climate type:Cfb : Temperate oceanic climate


Three E-W lodes with overgrown dumps on the valley side to the north of Sweethouse and mainly within Lanhydrock. Engine Shaft sunk to 110fms but output scanty: 130 tons copper ore and 2 tons black tin in 1823-24 and 1853-69.

The reference to danalite at Wheal Maudlin is a Kingsbury (1961) citation. Given the doubts about the provenance of other Kingsbury specimens (Ryback et al. 1998, 2001), further confirmation is required.

Note:
Following an administrative reorganisation, the mine is now in Lostwithiel parish, and not in Lanlivery as it used to be for decades.

Regions containing this locality

Devon and Cornwall metalliferous mining district, England, UK

Mining District - 760 mineral species & varietal names listed

St Austell Mining District, Cornwall, England, UK

Mining District - 252 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


21 valid minerals.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
'Apatite'
Reference: Braithwaite, R.S.W., and Cooper, B.V. (1982): Mineralogical Magazine 46, 119-126
Arsenopyrite
Formula: FeAsS
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Dana 6: 99.
Cassiterite
Formula: SnO2
Reference: Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 71; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, pp. 517-518
Chalcocite
Formula: Cu2S
Reference: Dines, H.G: The Metalliferous Mining Region of South-West England, Vol II, pp 517 - 518
Chalcopyrite
Formula: CuFeS2
Reference: Smyth, W: (1875): Transactions of the Royal Geological Society of Cornwall 9, 38-45; Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, pp. 517-518
'Chlorite Group'
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Covellite
Formula: CuS
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Cronstedtite
Formula: Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4
Reference: Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 60; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, pp. 517-518
'Cronstedtite-2H2'
Reference: Clays and Clay Minerals, Volume 50, Number 5, 1 October 2002, pp. 601-613(13)
Cuprite
Formula: Cu2O
Reference: Dines, H.G: The Metalliferous Mining Region of South-West England, Vol II, pp 517 - 518
Danalite ?
Formula: Be3Fe2+4(SiO4)3S
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Fluorapatite
Formula: Ca5(PO4)3F
Reference: Braithwaite, R.S.W., and Cooper, B.V. (1982): Mineralogical Magazine 46, 119-126
Fluorapatite var: Carbonate-rich Fluorapatite
Formula: Ca5(PO4,CO3)3(F,O)
Reference: Braithwaite, R.S.W., and Cooper, B.V. (1982): Mineralogical Magazine 46, 119-126
Fluorite
Formula: CaF2
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Dewey, H., and Smith, B. (1922) Special Rep. Mineral Resources G.B. 23.
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Smyth, W: (1875): Transactions of the Royal Geological Society of Cornwall 9, 38-45; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Melanterite
Formula: Fe2+(H2O)6SO4 · H2O
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Opal
Formula: SiO2 · nH2O
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Pyrite
Formula: FeS2
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Dines, H.G. (1956): The Metalliferous Mining Region of South-West England. HMSO Publications (London), Vol. 2, pp. 517-518
Pyrrhotite
Formula: Fe7S8
Reference: Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 64; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Quartz
Formula: SiO2
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Quartz var: Chalcedony
Formula: SiO2
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Quartz var: Jasper
Reference: Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), pp. 59, 198; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Scheelite
Formula: Ca(WO4)
Reference: Hall, T.M. (1868) The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Dines, H.G. (1956) The Metalliferous Mining Region of South-West England. HMSO Publications (London), vol. 2, 517-518.; Kingsbury, A.W.G. and Hartley, J. (1956) Cosalite and other lead sulpho-salts at Grainsgill, Carrock Fell, Caldbeck, Cumberland. Mineralogical Magazine, vol. 31, n° 235, 296-300.
Siderite
Formula: FeCO3
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Sphalerite
Formula: ZnS
Reference: Dines, H.G: The Metalliferous Mining Region of South-West England, Vol II, pp 517 - 518
Tenorite
Formula: CuO
Reference: Dines, H.G: The Metalliferous Mining Region of South-West England, Vol II, pp 517 - 518
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Reference: Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
'Wolframite'
Formula: (Fe2+)WO4 to (Mn2+)WO4
Reference: Hall, T.M. (1868) The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Dines, H.G. (1956) The Metalliferous Mining Region of South-West England. HMSO Publications (London), vol. 2, 517-518.; Kingsbury, A.W.G. and Hartley, J. (1956) Cosalite and other lead sulpho-salts at Grainsgill, Carrock Fell, Caldbeck, Cumberland. Mineralogical Magazine, vol. 31, n° 235, 296-300.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Arsenopyrite'2.EB.20FeAsS
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Covellite2.CA.05aCuS
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Sphalerite2.CB.05aZnS
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Cassiterite4.DB.05SnO2
Cuprite4.AA.10Cu2O
Opal4.DA.10SiO2 · nH2O
Quartz4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
var: Jasper4.DA.05SiO2
Tenorite4.AB.10CuO
Group 5 - Nitrates and Carbonates
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Melanterite7.CB.35Fe2+(H2O)6SO4 · H2O
Scheelite7.GA.05Ca(WO4)
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
'Actinolite'9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Cronstedtite9.ED.15Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4
Danalite ?9.FB.10Be3Fe2+4(SiO4)3S
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Unclassified Minerals, Rocks, etc.
'Apatite'-
Chlorite Group-
Cronstedtite-2H2-
Garnet Group-X3Z2(SiO4)3
Wolframite-(Fe2+)WO4 to (Mn2+)WO4

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
AmXp, with m:p = 1:1
Covellite2.8.12.1CuS
Pyrrhotite2.8.10.1Fe7S8
Sphalerite2.8.2.1ZnS
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
A2X
Cuprite4.1.1.1Cu2O
AX
Tenorite4.2.3.1CuO
AX2
Cassiterite4.4.1.5SnO2
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Siderite14.1.1.3FeCO3
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Melanterite29.6.10.1Fe2+(H2O)6SO4 · H2O
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 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Scheelite48.1.2.1Ca(WO4)
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Cronstedtite71.1.4.7Fe2+2Fe3+((Si,Fe3+)2O5)(OH)4
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 Feldspathoids and related species
Danalite ?76.2.4.2Be3Fe2+4(SiO4)3S
Unclassified Minerals, Rocks, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Apatite'-
'Chlorite Group'-
'Cronstedtite-2H2'-
'Garnet Group'-X3Z2(SiO4)3
Quartz
var: Chalcedony
-SiO2
var: Jasper-SiO2
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4

List of minerals for each chemical element

HHydrogen
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
H MelanteriteFe2+(H2O)6SO4 · H2O
H OpalSiO2 · nH2O
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
BeBeryllium
Be DanaliteBe3Fe42+(SiO4)3S
CCarbon
C Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
C SideriteFeCO3
OOxygen
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
O CassiteriteSnO2
O Quartz (var: Chalcedony)SiO2
O CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
O CupriteCu2O
O DanaliteBe3Fe42+(SiO4)3S
O FluorapatiteCa5(PO4)3F
O Garnet GroupX3Z2(SiO4)3
O MelanteriteFe2+(H2O)6SO4 · H2O
O OpalSiO2 · nH2O
O QuartzSiO2
O ScheeliteCa(WO4)
O SideriteFeCO3
O TenoriteCuO
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
O Wolframite(Fe2+)WO4 to (Mn2+)WO4
FFluorine
F Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
F FluorapatiteCa5(PO4)3F
F FluoriteCaF2
MgMagnesium
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
SiSilicon
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si Quartz (var: Chalcedony)SiO2
Si CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
Si DanaliteBe3Fe42+(SiO4)3S
Si Garnet GroupX3Z2(SiO4)3
Si OpalSiO2 · nH2O
Si QuartzSiO2
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
PPhosphorus
P Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
P FluorapatiteCa5(PO4)3F
SSulfur
S ArsenopyriteFeAsS
S ChalcociteCu2S
S ChalcopyriteCuFeS2
S CovelliteCuS
S DanaliteBe3Fe42+(SiO4)3S
S MelanteriteFe2+(H2O)6SO4 · H2O
S PyriteFeS2
S PyrrhotiteFe7S8
S SphaleriteZnS
CaCalcium
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
Ca FluorapatiteCa5(PO4)3F
Ca FluoriteCaF2
Ca ScheeliteCa(WO4)
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
MnManganese
Mn Wolframite(Fe2+)WO4 to (Mn2+)WO4
FeIron
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe ArsenopyriteFeAsS
Fe ChalcopyriteCuFeS2
Fe CronstedtiteFe22+Fe3+((Si,Fe3+)2O5)(OH)4
Fe DanaliteBe3Fe42+(SiO4)3S
Fe MelanteriteFe2+(H2O)6SO4 · H2O
Fe PyriteFeS2
Fe PyrrhotiteFe7S8
Fe SideriteFeCO3
Fe Wolframite(Fe2+)WO4 to (Mn2+)WO4
CuCopper
Cu ChalcociteCu2S
Cu ChalcopyriteCuFeS2
Cu CovelliteCuS
Cu CupriteCu2O
Cu TenoriteCuO
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS
SnTin
Sn CassiteriteSnO2
WTungsten
W ScheeliteCa(WO4)
W Wolframite(Fe2+)WO4 to (Mn2+)WO4

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

Early Carboniferous
323.2 - 358.9 Ma



ID: 3192903
Paleozoic sedimentary rocks

Age: Mississippian (323.2 - 358.9 Ma)

Lithology: Sedimentary 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]

Early Devonian
393.3 - 419.2 Ma



ID: 2033471
Lower Devonian Rocks (Undifferentiated)

Age: Early Devonian (393.3 - 419.2 Ma)

Lithology: Mudstone, siltstone and sandstone

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

Early Devonian
393.3 - 419.2 Ma



ID: 3151591
Early Devonian sandstone

Age: Early Devonian (393.3 - 419.2 Ma)

Lithology: Sandstone

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

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Smyth, W. (1875) On the occurrence of metallic ores with garnet rock. Transactions of the Royal Geological Society of Cornwall 9, 38-45.


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