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Mount Mine (Perran Iron Mine; Trebisken and Mount Mine), Perran Iron Lode (Great Perran Iron Lode), Perranzabuloe, Cornwall, England, UKi
Regional Level Types
Mount Mine (Perran Iron Mine; Trebisken and Mount Mine)Mine
Perran Iron Lode (Great Perran Iron Lode)Lode
PerranzabuloeCivil Parish
CornwallCounty
EnglandConstituent Country
UKCountry

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Key
Latitude & Longitude (WGS84):
50° 21' 57'' North , 5° 7' 19'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW780565
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Cubert771 (2017)1.5km
Perranporth3,210 (2017)3.4km
Crantock801 (2017)4.2km
Newquay20,189 (2017)6.5km
Saint Agnes2,820 (2014)8.3km


An iron mine on the Perran Iron Lode, originally worked opencast from two pits, a small western one and a large eastern one, about 70 yards apart. The eastern pit was 200 ft long, up to 80 ft wide and 100 ft deep. The oxidation of the siderite stopped at about 50 ft below surface and the workings at the bottom of the pit, which were in two large chambers, exposed massive grey siderite ore with scattered specks of sulphides.

An adit, wide enough to take normal-gauge railway wagons, was driven from 300 yards NNE of the eastern pit to open up the lode at greater depth. It passed 40 ft below the pit, to which it was connected by an ore-pass winze. A mine plan shows that drives were carried out from the tunnel below the pit 100 ft east and 150 ft west at two levels. Several crosscuts from each of the drives cross the position of the lode, but there is no stoping shown, indicating, that the rich orebodies which were certainly expected were not found.

There also are two old shafts NE and NNE of the pit, which are believed to be on the southern extension of Trebisken Lode. According to the plans, the shafts were connected to the adit, but it is not known whether the lode was exploited here. However, some lead and silver ores were sold when the mine was operated as Mount and Trebisken Mine.

Mount Mine was reopened in 1916 without success and during the Second World war (1939-1945), was investigated as a source of iron ore. An inclined shaft was sunk just east of the eastern pit and followed the footwall of the lode. Drives were carried out on both sides to prove the lode, but the values were rather patchy and wartime production remained small. The grid reference marks the site of Engine Shaft. The chimney of the engine house still stands in the field south of the eastern pit, which is now backfilled and overgrown.

From 1858 to 1877, the mine produced 45,826 tons of brown iron ore, 5.5 tons of lead ore, 10 tons of silver ore and some native silver under the name Trebisken and Mount. As Mount Mine, it produced 4,262 tons of iron ore in 1871, 1873, 1880, 1905 and 1907, and 11 tons of lead ore in 1854. As Perran Iron Mine, it returned 164 tons of brown iron ore in 1866 and, for the New Perran Iron Company, another 2,728 tons of iron ore and 49 tons of manganese ore were recorded in 1878.

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


21 valid minerals.

Detailed Mineral List:

Acanthite
Formula: Ag2S
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Aragonite
Formula: CaCO3
Reference: Collection Richard De Nul
Arsenopyrite
Formula: FeAsS
Reference: Collection Richard De Nul
Calcite
Formula: CaCO3
Reference: Collection Richard De Nul
Cuprite
Formula: Cu2O
Reference: Collection 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
Galena
Formula: PbS
Reference: Reid, C., Scrivenor, J.B., Flett, J.S., Pollard, W., and MacAlister, D.A. (1906): The Geology of the Country near Newquay. HMSO Publications (London), 131 pp.; Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 442-443
Goethite
Formula: α-Fe3+O(OH)
Reference: Collection Richard De Nul
Hematite
Formula: Fe2O3
Reference: Collection Richard De Nul
Lepidocrocite
Formula: γ-Fe3+O(OH)
Reference: Collection Richard De Nul
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Reid, C., Scrivenor, J.B., Flett, J.S., Pollard, W., and MacAlister, D.A. (1906): The Geology of the Country near Newquay. HMSO Publications (London), 131 pp.; Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 442-443
Linarite
Formula: PbCu(SO4)(OH)2
Reference: Collection Richard De Nul
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Collection Richard De Nul
Pharmacosiderite
Formula: KFe3+4(AsO4)3(OH)4 · 6-7H2O
Reference: Collection Richard De Nul
Pyrargyrite
Formula: Ag3SbS3
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. 1, pp. 442-443
Pyromorphite
Formula: Pb5(PO4)3Cl
Reference: Collection Richard De Nul
Quartz
Formula: SiO2
Reference: Reid, C., Scrivenor, J.B., Flett, J.S., Pollard, W., and MacAlister, D.A. (1906): The Geology of the Country near Newquay. HMSO Publications (London), 131 pp.
Scorodite
Formula: Fe3+AsO4 · 2H2O
Reference: Collection Richard De Nul
Siderite
Formula: FeCO3
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 442-443.
Silver
Formula: Ag
Reference: Smyth, W. (1882): Transactions of the Royal Geological Society of Cornwall 10, 120-130; Reid, C., Scrivenor, J.B., Flett, J.S., Pollard, W., and MacAlister, D.A. (1906): The Geology of the Country near Newquay. HMSO Publications (London), 131 pp.; Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 442-443
Sphalerite
Formula: ZnS
Reference: Collection Richard De Nul

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
Acanthite2.BA.35Ag2S
Arsenopyrite2.EB.20FeAsS
Galena2.CD.10PbS
Pyrargyrite2.GA.05Ag3SbS3
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
Cuprite4.AA.10Cu2O
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Lepidocrocite4.FE.15γ-Fe3+O(OH)
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Aragonite5.AB.15CaCO3
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Linarite7.BC.65PbCu(SO4)(OH)2
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
var: Carbonate-rich Fluorapatite8.BN.05Ca5(PO4,CO3)3(F,O)
Pharmacosiderite8.DK.10KFe3+4(AsO4)3(OH)4 · 6-7H2O
Pyromorphite8.BN.05Pb5(PO4)3Cl
Scorodite8.CD.10Fe3+AsO4 · 2H2O
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Silver1.1.1.2Ag
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Acanthite2.4.1.1Ag2S
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
ø = 3
Pyrargyrite3.4.1.2Ag3SbS3
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
A2X3
Hematite4.3.1.2Fe2O3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Lepidocrocite6.1.2.2γ-Fe3+O(OH)
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite14.1.1.3FeCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Linarite30.2.3.1PbCu(SO4)(OH)2
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
(AB)5(XO4)2·xH2O
Scorodite40.4.1.3Fe3+AsO4 · 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)
Pyromorphite41.8.4.1Pb5(PO4)3Cl
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)5(XO4)3Zq·xH2O
Pharmacosiderite42.8.1a.1KFe3+4(AsO4)3(OH)4 · 6-7H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Aragonite-CaCO3
'Limonite'-(Fe,O,OH,H2O)

List of minerals for each chemical element

HHydrogen
H Goethiteα-Fe3+O(OH)
H MalachiteCu2(CO3)(OH)2
H Lepidocrociteγ-Fe3+O(OH)
H LinaritePbCu(SO4)(OH)2
H PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
H ScoroditeFe3+AsO4 · 2H2O
H Limonite(Fe,O,OH,H2O)
CCarbon
C SideriteFeCO3
C AragoniteCaCO3
C CalciteCaCO3
C Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
C MalachiteCu2(CO3)(OH)2
OOxygen
O SideriteFeCO3
O Goethiteα-Fe3+O(OH)
O QuartzSiO2
O AragoniteCaCO3
O CalciteCaCO3
O Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
O CupriteCu2O
O MalachiteCu2(CO3)(OH)2
O HematiteFe2O3
O Lepidocrociteγ-Fe3+O(OH)
O LinaritePbCu(SO4)(OH)2
O PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
O PyromorphitePb5(PO4)3Cl
O ScoroditeFe3+AsO4 · 2H2O
O Limonite(Fe,O,OH,H2O)
O FluorapatiteCa5(PO4)3F
FFluorine
F Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
F FluorapatiteCa5(PO4)3F
SiSilicon
Si QuartzSiO2
PPhosphorus
P Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
P PyromorphitePb5(PO4)3Cl
P FluorapatiteCa5(PO4)3F
SSulfur
S AcanthiteAg2S
S PyriteFeS2
S GalenaPbS
S ArsenopyriteFeAsS
S LinaritePbCu(SO4)(OH)2
S SphaleriteZnS
S PyrargyriteAg3SbS3
ClChlorine
Cl PyromorphitePb5(PO4)3Cl
KPotassium
K PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
CaCalcium
Ca AragoniteCaCO3
Ca CalciteCaCO3
Ca Fluorapatite (var: Carbonate-rich Fluorapatite)Ca5(PO4,CO3)3(F,O)
Ca FluorapatiteCa5(PO4)3F
FeIron
Fe SideriteFeCO3
Fe PyriteFeS2
Fe Goethiteα-Fe3+O(OH)
Fe ArsenopyriteFeAsS
Fe HematiteFe2O3
Fe Lepidocrociteγ-Fe3+O(OH)
Fe PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
Fe ScoroditeFe3+AsO4 · 2H2O
Fe Limonite(Fe,O,OH,H2O)
CuCopper
Cu CupriteCu2O
Cu MalachiteCu2(CO3)(OH)2
Cu LinaritePbCu(SO4)(OH)2
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS
As PharmacosideriteKFe43+(AsO4)3(OH)4 · 6-7H2O
As ScoroditeFe3+AsO4 · 2H2O
AgSilver
Ag AcanthiteAg2S
Ag SilverAg
Ag PyrargyriteAg3SbS3
SbAntimony
Sb PyrargyriteAg3SbS3
PbLead
Pb GalenaPbS
Pb LinaritePbCu(SO4)(OH)2
Pb PyromorphitePb5(PO4)3Cl

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

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
A.K. Hamilton Jenkin: Annotations to Ordnance Survey map, scale 1:10,000, sheet 39SW.
Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 442-443 (see also corrigenda in the 1994 reprint).

Other Regions, Features and Areas containing this locality

British IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
UK

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