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Restormel Royal Iron Mine (Trinity Mine), Lostwithiel, Cornwall, England, UKi
Regional Level Types
Restormel Royal Iron Mine (Trinity Mine)Mine (Abandoned)
LostwithielCivil Parish
CornwallCounty
EnglandConstituent Country
UKCountry

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Key
Latitude & Longitude (WGS84):
50° 25' 14'' North , 4° 40' 40'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SX098614
Locality type:
Mine (Abandoned) - last checked 2019
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Lostwithiel2,659 (2017)1.5km
Luxulian388 (2017)5.8km
Lerryn308 (2017)5.9km
Bodmin14,614 (2017)6.5km
Lanivet989 (2017)6.6km


Originally called Trinity Mine in 1797 when Philip Rashleigh obtained fine specimens of crystallised goethite for his collection.

Subsequently renamed Restormel Royal Iron Mine after a visit from Queen Victoria and Prince Albert in September 1846. The mine captain described how Prince Albert "took the pick, and he thawed it like a man! and he got a bit of ore." On the departure of the Royal party, 120 miners "were ready to cheer 'em as they drove off, all red like Injians from the red of the main [lode] and we did cheer to be sure, as never was before". After the royal visit, Queen Victoria commanded 50 gold sovereigns to be distributed among the miners.

Two lodes trending northwards from near Lostwithiel through Lanhydrock. Mostly worked from extensive levels. Produced 128,000 tons iron ore 1855-83.

Restormel Royal Iron Mine closed in 1883.

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


15 valid minerals. 1 erroneous literature entry.

Detailed Mineral List:

'Agalmatolite'
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): A Handbook to the Mineralogy of Cornwall and Devon, 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
Baryte
Formula: BaSO4
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Bismuth
Formula: Bi
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Bismutite
Formula: (BiO)2CO3
Reference: Clark, A.M., Couper, A.G., Embrey, P.G., and Fejer, E.E. (1986): Mineralogical Magazine 50, 731-733
Cryptomelane
Formula: K(Mn4+7Mn3+)O16
Reference: Cotterel, T.F. (2010) An unusual manganese-bearing assemblage from Restormel, Lostwithiel, Cornwall. Journal of the Russell Society 13, 53-56.
Eulytine
Formula: Bi4(SiO4)3
Description: A specimen from J.H. Collins has been shown by Clark et al. (1986) to contain no eulytine at all, but turned out to be waylandite.
Reference: Clark, A.M., Couper, A.G., Embrey, P.G., and Fejer, E.E. (1986) Mineralogical Magazine 50, 731-733.; Braithwaite, R.S.W. and Knight, J.R. (1990) Rare Minerals, Including Several New to Britain, in Supergene Alteration of U-Cu-As-Bi-Co Mineralisation Near Dalbeattie, South Scotland. Mineralogical Magazine, vol. 54, n° 374: 129-131. (referring to Clark, et al.)
Goethite
Formula: α-Fe3+O(OH)
Reference: Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Dana 6: 710; Dana 7:I:683; Rocks & Min.: 16:130; Paul De Bondt collection
Hematite
Formula: Fe2O3
Reference: Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Hematite var. Specularite
Formula: Fe2O3
Reference: Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386
Jacobsite
Formula: Mn2+Fe3+2O4
Reference: Cotterel, T.F. (2010) An unusual manganese-bearing assemblage from Restormel, Lostwithiel, Cornwall. Journal of the Russell Society 13, 53-56.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Cotterel, T.F. (2010) An unusual manganese-bearing assemblage from Restormel, Lostwithiel, Cornwall. Journal of the Russell Society 13, 53-56.
Manganite
Formula: Mn3+O(OH)
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Opal
Formula: SiO2 · nH2O
Reference: Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386
'Psilomelane'
Formula: Mn, O
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Cotterel, T.F. (2010) An unusual manganese-bearing assemblage from Restormel, Lostwithiel, Cornwall. Journal of the Russell Society 13, 53-56.
Pyrolusite
Formula: Mn4+O2
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Cotterel, T.F. (2010) An unusual manganese-bearing assemblage from Restormel, Lostwithiel, Cornwall. Journal of the Russell Society 13, 53-56.
Quartz
Formula: SiO2
Reference: Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Rocks & Min.: 16:130
Quartz var. Amethyst
Formula: SiO2
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Quartz var. Chalcedony
Formula: SiO2
Reference: Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386
Quartz var. Citrine
Formula: SiO2
Reference: [Golley & Williams, 1995 - "Cornish Mineral Reference Manual", 51]
Quartz var. Jasper
Reference: Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386
Siderite
Formula: FeCO3
Reference: Edgar John Peter Sutton
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: Cotterel, T.F. (2010) An unusual manganese-bearing assemblage from Restormel, Lostwithiel, Cornwall. Journal of the Russell Society 13, 53-56.
Waylandite
Formula: BiAl3(PO4)2(OH)6
Description: Originally thought to be eulytine, however Clark et al., 1986 proved it to be Waylandite.
Reference: Clark, A.M., Couper, A.G., Embrey, P.G., and Fejer, E.E. (1986): Mineralogical Magazine 50, 731-733.; Braithwaite, R.S.W. and Knight, J.R. (1990) Rare Minerals, Including Several New to Britain, in Supergene Alteration of U-Cu-As-Bi-Co Mineralisation Near Dalbeattie, South Scotland. Mineralogical Magazine, vol. 54, n° 374: 129-131. (referring to Clark et al.)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Bismuth1.CA.05Bi
Group 4 - Oxides and Hydroxides
Cryptomelane4.DK.05aK(Mn4+7Mn3+)O16
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
var. Specularite4.CB.05Fe2O3
Jacobsite4.BB.05Mn2+Fe3+2O4
Magnetite4.BB.05Fe2+Fe3+2O4
Manganite4.FD.15Mn3+O(OH)
Opal4.DA.10SiO2 · nH2O
Pyrolusite4.DB.05Mn4+O2
Quartz4.DA.05SiO2
var. Amethyst4.DA.05SiO2
var. Chalcedony4.DA.05SiO2
var. Citrine4.DA.05SiO2
var. Jasper4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Bismutite5.BE.25(BiO)2CO3
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Group 8 - Phosphates, Arsenates and Vanadates
Waylandite8.BL.13BiAl3(PO4)2(OH)6
Group 9 - Silicates
Eulytine ?9.AD.40Bi4(SiO4)3
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Unclassified Minerals, Rocks, etc.
'Agalmatolite'-
'Limonite'-(Fe,O,OH,H2O)
'Psilomelane'-Mn, O

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Bismuth1.3.1.4Bi
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
AX2
Pyrolusite4.4.1.4Mn4+O2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Manganite6.1.3.1Mn3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Jacobsite7.2.2.2Mn2+Fe3+2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
AB8X16
Cryptomelane7.9.1.2K(Mn4+7Mn3+)O16
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Siderite14.1.1.3FeCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Bismutite16a.3.5.1(BiO)2CO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Waylandite41.5.12.1BiAl3(PO4)2(OH)6
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Eulytine ?51.5.4.1Bi4(SiO4)3
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
Unclassified Minerals, Mixtures, etc.
'Agalmatolite'-
Hematite
var. Specularite
-Fe2O3
'Limonite'-(Fe,O,OH,H2O)
'Psilomelane'-Mn, O
Quartz
var. Amethyst
-SiO2
var. Chalcedony-SiO2
var. Citrine-SiO2
var. Jasper-SiO2

List of minerals for each chemical element

HHydrogen
H Goethiteα-Fe3+O(OH)
H ManganiteMn3+O(OH)
H WaylanditeBiAl3(PO4)2(OH)6
H Limonite(Fe,O,OH,H2O)
H OpalSiO2 · nH2O
CCarbon
C SideriteFeCO3
C Bismutite(BiO)2CO3
OOxygen
O BaryteBaSO4
O Quartz var. CitrineSiO2
O Goethiteα-Fe3+O(OH)
O HematiteFe2O3
O ManganiteMn3+O(OH)
O PsilomelaneMn, O
O WaylanditeBiAl3(PO4)2(OH)6
O SideriteFeCO3
O QuartzSiO2
O PyrolusiteMn4+O2
O Bismutite(BiO)2CO3
O Limonite(Fe,O,OH,H2O)
O Hematite var. SpeculariteFe2O3
O OpalSiO2 · nH2O
O Quartz var. ChalcedonySiO2
O Quartz var. AmethystSiO2
O SpessartineMn32+Al2(SiO4)3
O MagnetiteFe2+Fe23+O4
O JacobsiteMn2+Fe23+O4
O CryptomelaneK(Mn74+Mn3+)O16
O EulytineBi4(SiO4)3
AlAluminium
Al WaylanditeBiAl3(PO4)2(OH)6
Al SpessartineMn32+Al2(SiO4)3
SiSilicon
Si Quartz var. CitrineSiO2
Si QuartzSiO2
Si OpalSiO2 · nH2O
Si Quartz var. ChalcedonySiO2
Si Quartz var. AmethystSiO2
Si SpessartineMn32+Al2(SiO4)3
Si EulytineBi4(SiO4)3
PPhosphorus
P WaylanditeBiAl3(PO4)2(OH)6
SSulfur
S BaryteBaSO4
KPotassium
K CryptomelaneK(Mn74+Mn3+)O16
MnManganese
Mn ManganiteMn3+O(OH)
Mn PsilomelaneMn, O
Mn PyrolusiteMn4+O2
Mn SpessartineMn32+Al2(SiO4)3
Mn JacobsiteMn2+Fe23+O4
Mn CryptomelaneK(Mn74+Mn3+)O16
FeIron
Fe Goethiteα-Fe3+O(OH)
Fe HematiteFe2O3
Fe SideriteFeCO3
Fe Limonite(Fe,O,OH,H2O)
Fe Hematite var. SpeculariteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe JacobsiteMn2+Fe23+O4
BaBarium
Ba BaryteBaSO4
BiBismuth
Bi WaylanditeBiAl3(PO4)2(OH)6
Bi Bismutite(BiO)2CO3
Bi BismuthBi
Bi EulytineBi4(SiO4)3

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)
Clark, A.M., Couper, A.G., Embrey, P.G., and Fejer, E.E. (1986) Waylandite: New Data from an Occurrence in Cornwall, and a Note on 'Agnesite'. Mineralogical Magazine 50, 731-733.
Cotterel, T.F. (2010) An unusual manganese-bearing assemblage from Restormel, Lostwithiel, Cornwall. Journal of the Russell Society 13, 53-56.

External Links


Other Regions, Features and Areas containing this locality

British IslesGroup of Islands
Eurasian PlateTectonic Plate
EuropeContinent
UK

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