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Great Retallack Mine, Perran Iron Lode (Great Perran Iron Lode), Perranzabuloe, Cornwall, England, UKi
Regional Level Types
Great Retallack MineMine
Perran Iron Lode (Great Perran Iron Lode)Lode
PerranzabuloeCivil Parish
CornwallCounty
EnglandConstituent Country
UKCountry

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Key
Latitude & Longitude (WGS84):
50° 21' 35'' North , 5° 6' 22'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW791558
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Cubert771 (2017)2.3km
Perranporth3,210 (2017)3.9km
Crantock801 (2017)4.8km
Newquay20,189 (2017)6.6km
Saint Agnes2,820 (2014)8.7km


This mine worked the Perran Iron Lode for about 300 yards east of the Treamble Mine. The grid reference marks the site of Engine Shaft. Hamilton Jenkin notes that the engine house still standing there in 1953 was wantonly destroyed in 1956. Today, no trace of the workings is left.

Between 1858 and 1880, the mine produced 10,826 tons of iron ore, 11,639 tons of zinc ore, 198 tons of 75% lead ore and 600 oz of silver.

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

10 valid minerals. 1 erroneous literature entry.

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
'Axinite Group'
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.
Chalcopyrite
Formula: CuFeS2
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. 444-445
Galena
Formula: PbS
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 444-445.
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 444-445
Hedenbergite
Formula: CaFe2+Si2O6
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 440-447
'Hornblende'
Description: Hornblende was reported by Collins, but has been later shown by J. Phemister to be hedenbergite (Dines, 1956).
Reference: Collins, J.H. (1892): A Handbook to the Mineralogy of Cornwall and Devon, 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.; Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 440-447
Lepidocrocite
Formula: γ-Fe3+O(OH)
Reference: Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
'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. 444-445
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Reference: Collins, J.H. (1878): Mineralogical Magazine 2, 92-94; Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
Pyrite
Formula: FeS2
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 444-445.
Quartz
Formula: SiO2
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 444-445
Silver
Formula: Ag
Reference: Collins, J.H. (1892): A Handbook to the Mineralogy of Cornwall and Devon, 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
Sphalerite
Formula: ZnS
Reference: Collins, J.H. (1892): A Handbook to the Mineralogy of Cornwall and Devon, 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.; 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. 444-445

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
Lepidocrocite4.FE.15γ-Fe3+O(OH)
Quartz4.DA.05SiO2
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Hedenbergite9.DA.15CaFe2+Si2O6
Montmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Unclassified Minerals, Rocks, etc.
'Axinite Group'-
'Garnet Group'-X3Z2(SiO4)3
'Hornblende' ?-
'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
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
Pyrite2.12.1.1FeS2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Lepidocrocite6.1.2.2γ-Fe3+O(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Hedenbergite65.1.3a.2CaFe2+Si2O6
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 clays
Montmorillonite71.3.1a.2(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Axinite Group'-
'Garnet Group'-X3Z2(SiO4)3
'Hornblende' ?-
'Limonite'-(Fe,O,OH,H2O)

List of minerals for each chemical element

HHydrogen
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H Lepidocrociteγ-Fe3+O(OH)
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H Limonite(Fe,O,OH,H2O)
OOxygen
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O Lepidocrociteγ-Fe3+O(OH)
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O HedenbergiteCaFe2+Si2O6
O Garnet GroupX3Z2(SiO4)3
O QuartzSiO2
O Limonite(Fe,O,OH,H2O)
NaSodium
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
MgMagnesium
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
AlAluminium
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
SiSilicon
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Si HedenbergiteCaFe2+Si2O6
Si Garnet GroupX3Z2(SiO4)3
Si QuartzSiO2
SSulfur
S ChalcopyriteCuFeS2
S GalenaPbS
S SphaleriteZnS
S PyriteFeS2
CaCalcium
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Ca HedenbergiteCaFe2+Si2O6
FeIron
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe Lepidocrociteγ-Fe3+O(OH)
Fe ChalcopyriteCuFeS2
Fe HedenbergiteCaFe2+Si2O6
Fe PyriteFeS2
Fe Limonite(Fe,O,OH,H2O)
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
AgSilver
Ag SilverAg
PbLead
Pb GalenaPbS

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 48NW.
Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 444-445 (see also the corrigenda in the 1994 reprint)

Localities in this Region

  • England
    • Cornwall

Other Regions, Features and Areas containing this locality

British IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
UK

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
 
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