Wheal Mary Ann, Menheniot, Cornwall, England, UKi
| Regional Level Types | |
|---|---|
| Wheal Mary Ann | Mine (Inactive) |
| Menheniot | Civil Parish |
| Cornwall | County |
| England | Constituent Country |
| UK | Country |
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Latitude & Longitude (WGS84):
50° 26' 41'' North , 4° 24' 41'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SX288634
Type:
Mine (Inactive) - last checked 2019
Köppen climate type:
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| British Micromount Society, Devon and Cornwall Branch Meetings | Liskeard, Cornwall | 4km |
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.
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Farming was the main industry of the ancient parish of Menheniot until, in 1843, a road digger near the church exposed a shallow lode of lead ore. The landowner, Charles Trelawney, granted mining rights to James and Peter Clymo, who had discovered copper in Caradon Hill. Wheal Trelawney was joined in 1845 by Wheal Mary Ann named after the landowner, Miss Mary Ann Pollard, a farmer.
By the 1860s, an influx of miners doubled the population to 2,500 and the rural spot had become an industrial village. The first two mines were worked down to 1400 feet below the surface. Eventually more than twelve lead and silver mines were worked in the Parish.
Peak production years for lead and silver were between 1857 and 1872 but by 1875 the mines were closing. Rising costs, low mineral prices and falling production made them unprofitable. However, rock was recovered from the workings during World War 1.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
21 valid minerals.
Detailed Mineral List:
| ⓘ 'Alunite Group' Formula: A0.5-1 B3[SO4]2(OH)6 References: |
| ⓘ Baryte Formula: BaSO4 |
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Cerussite Formula: PbCO3 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Cuprite Formula: Cu2O References: |
| ⓘ Dundasite Formula: PbAl2(CO3)2(OH)4 · H2O References: |
| ⓘ Fluorapatite Formula: Ca5(PO4)3F |
| ⓘ Fluorapatite var. Carbonate-rich Fluorapatite Formula: Ca5(PO4,CO3)3(F,O) |
| ⓘ Fluorite Formula: CaF2 |
| ⓘ Galena Formula: PbS |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ⓘ Gypsum var. Selenite Formula: CaSO4 · 2H2O |
| ⓘ Langite Formula: Cu4(SO4)(OH)6 · 2H2O References: |
| ⓘ 'Limonite' |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 References: |
| ⓘ Marcasite Formula: FeS2 |
| ⓘ Mimetite Formula: Pb5(AsO4)3Cl References: |
| ⓘ Phosphohedyphane Formula: Ca2Pb3(PO4)3Cl References: |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Pyromorphite Formula: Pb5(PO4)3Cl |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quartz var. Chalcedony Formula: SiO2 References: |
| ⓘ Quartz var. Rock Crystal Formula: SiO2 |
| ⓘ Siderite Formula: FeCO3 References: |
| ⓘ Sphalerite Formula: ZnS |
| ⓘ Wulfenite Formula: Pb(MoO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Marcasite | 2.EB.10a | FeS2 |
| Group 3 - Halides | |||
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Cuprite | 4.AA.10 | Cu2O |
| ⓘ | Quartz var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | var. Rock Crystal | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Siderite | 5.AB.05 | FeCO3 |
| ⓘ | Cerussite | 5.AB.15 | PbCO3 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| ⓘ | Dundasite | 5.DB.10 | PbAl2(CO3)2(OH)4 · H2O |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| ⓘ | var. Selenite | 7.CD.40 | CaSO4 · 2H2O |
| ⓘ | Langite | 7.DD.10 | Cu4(SO4)(OH)6 · 2H2O |
| ⓘ | Wulfenite | 7.GA.05 | Pb(MoO4) |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Fluorapatite var. Carbonate-rich Fluorapatite | 8.BN.05 | Ca5(PO4,CO3)3(F,O) |
| ⓘ | 8.BN.05 | Ca5(PO4)3F | |
| ⓘ | Mimetite | 8.BN.05 | Pb5(AsO4)3Cl |
| ⓘ | Pyromorphite | 8.BN.05 | Pb5(PO4)3Cl |
| ⓘ | Phosphohedyphane | 8.BN.05 | Ca2Pb3(PO4)3Cl |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Alunite Group' | - | A0.5-1 B3[SO4]2(OH)6 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Dundasite | PbAl2(CO3)2(OH)4 · H2O |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Langite | Cu4(SO4)(OH)6 · 2H2O |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Gypsum var. Selenite | CaSO4 · 2H2O |
| H | ⓘ Alunite Group | A0.5-1 B3[SO4]2(OH)6 |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| C | ⓘ Fluorapatite var. Carbonate-rich Fluorapatite | Ca5(PO4,CO3)3(F,O) |
| C | ⓘ Cerussite | PbCO3 |
| C | ⓘ Dundasite | PbAl2(CO3)2(OH)4 · H2O |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | ⓘ Siderite | FeCO3 |
| O | Oxygen | |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Fluorapatite var. Carbonate-rich Fluorapatite | Ca5(PO4,CO3)3(F,O) |
| O | ⓘ Cerussite | PbCO3 |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Cuprite | Cu2O |
| O | ⓘ Dundasite | PbAl2(CO3)2(OH)4 · H2O |
| O | ⓘ Fluorapatite | Ca5(PO4)3F |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Langite | Cu4(SO4)(OH)6 · 2H2O |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Mimetite | Pb5(AsO4)3Cl |
| O | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Siderite | FeCO3 |
| O | ⓘ Wulfenite | Pb(MoO4) |
| O | ⓘ Gypsum var. Selenite | CaSO4 · 2H2O |
| O | ⓘ Quartz var. Rock Crystal | SiO2 |
| O | ⓘ Phosphohedyphane | Ca2Pb3(PO4)3Cl |
| O | ⓘ Alunite Group | A0.5-1 B3[SO4]2(OH)6 |
| F | Fluorine | |
| F | ⓘ Fluorapatite var. Carbonate-rich Fluorapatite | Ca5(PO4,CO3)3(F,O) |
| F | ⓘ Fluorapatite | Ca5(PO4)3F |
| F | ⓘ Fluorite | CaF2 |
| Al | Aluminium | |
| Al | ⓘ Dundasite | PbAl2(CO3)2(OH)4 · H2O |
| Si | Silicon | |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Quartz var. Rock Crystal | SiO2 |
| P | Phosphorus | |
| P | ⓘ Fluorapatite var. Carbonate-rich Fluorapatite | Ca5(PO4,CO3)3(F,O) |
| P | ⓘ Fluorapatite | Ca5(PO4)3F |
| P | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| P | ⓘ Phosphohedyphane | Ca2Pb3(PO4)3Cl |
| S | Sulfur | |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Langite | Cu4(SO4)(OH)6 · 2H2O |
| S | ⓘ Marcasite | FeS2 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| S | ⓘ Gypsum var. Selenite | CaSO4 · 2H2O |
| S | ⓘ Alunite Group | A0.5-1 B3[SO4]2(OH)6 |
| Cl | Chlorine | |
| Cl | ⓘ Mimetite | Pb5(AsO4)3Cl |
| Cl | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| Cl | ⓘ Phosphohedyphane | Ca2Pb3(PO4)3Cl |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Fluorapatite var. Carbonate-rich Fluorapatite | Ca5(PO4,CO3)3(F,O) |
| Ca | ⓘ Fluorapatite | Ca5(PO4)3F |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | ⓘ Gypsum var. Selenite | CaSO4 · 2H2O |
| Ca | ⓘ Phosphohedyphane | Ca2Pb3(PO4)3Cl |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Marcasite | FeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Siderite | FeCO3 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Cuprite | Cu2O |
| Cu | ⓘ Langite | Cu4(SO4)(OH)6 · 2H2O |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Mimetite | Pb5(AsO4)3Cl |
| Mo | Molybdenum | |
| Mo | ⓘ Wulfenite | Pb(MoO4) |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Pb | Lead | |
| Pb | ⓘ Cerussite | PbCO3 |
| Pb | ⓘ Dundasite | PbAl2(CO3)2(OH)4 · H2O |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Mimetite | Pb5(AsO4)3Cl |
| Pb | ⓘ Pyromorphite | Pb5(PO4)3Cl |
| Pb | ⓘ Wulfenite | Pb(MoO4) |
| Pb | ⓘ Phosphohedyphane | Ca2Pb3(PO4)3Cl |
Geochronology
| Geologic Time | Rocks, Minerals and Events | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Phanerozoic | ||||||||||||||||||||||
| Paleozoic | ||||||||||||||||||||||
| Permian | ||||||||||||||||||||||
| Guadalupian |
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| Cisuralian |
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Other Regions, Features and Areas containing this locality
British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
- Rheno-Hercynian BeltOrogenic Belt
EuropeContinent
UK
- England
- Cornwall
- Liskeard Mining DistrictMining District
- Devon and Cornwall metalliferous mining districtMining District
- Cornwall
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Wheal Mary Ann, Menheniot, Cornwall, England, UK