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Castle-an-Dinas Mine, Castle-an-Dinas, St Columb Major, Cornwall, England, UKi
Regional Level Types
Castle-an-Dinas MineMine
Castle-an-Dinas- not defined -
St Columb MajorCivil Parish
CornwallCounty
EnglandConstituent Country
UKCountry

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Key
Latitude & Longitude (WGS84):
50° 25' 26'' North , 4° 53' 30'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW946623
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Saint Columb Major3,170 (2017)3.7km
Roche2,517 (2017)4.5km
Saint Dennis2,206 (2016)4.5km
Nanpean2,563 (2017)6.3km
Bugle2,873 (2017)7.7km


A N_S vertical wolfram lode crossing Castle-an-Dinas Hill and running through the centre of the hillfort of that name. There is a cluster of buildings at South Shaft (sunk in 1945 to 650ft) and open stopes and 4 levels in the north side of the hill. There is a granite cupola in the core of the hill and the ore dies out where it enters this rock.
The mine operated during the First and Second World Wars on a limited scale but the main period of working was 1945-58 when about 3,000 tons wolfram were produced.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


18 valid minerals. 1 (TL) - type locality of valid minerals.

Detailed Mineral List:

Arsenopyrite
Formula: FeAsS
Reference: Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
Bismuth
Formula: Bi
Reference: Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
Bismuthinite
Formula: Bi2S3
Reference: Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
Cacoxenite
Formula: Fe3+24AlO6(PO4)17(OH)12 · 75H2O
Reference: Ryback, G., Nawaz, R. and Farley, E. (1988) Seventh Supplementary List of British Isles Minerals (Irish). Mineralogical Magazine, vol. 52, n° 365, pp. 267-274.; Golley & Williams (1996) Cornish Mineral Reference Manual, 13.
Cassiterite
Formula: SnO2
Reference: Bruce Grant Collection, confirmed by 'tin' test; Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
Copper
Formula: Cu
Reference: Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
Cuprite
Formula: Cu2O
Reference: Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
Fluorite
Formula: CaF2
Reference: Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
Löllingite
Formula: FeAs2
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: No reference listed
'Psilomelane'
Formula: Mn, O
Reference: Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
Quartz
Formula: SiO2
Reference: Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
Russellite (TL)
Formula: Bi2WO6
Type Locality:
Reference: [Clark, 1993 - "Hey's Mineral Index"]; Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications; Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
Schorl
Formula: Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
Scorodite
Formula: Fe3+AsO4 · 2H2O
Reference: Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
Topaz
Formula: Al2(SiO4)(F,OH)2
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications; Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
Turquoise
Formula: Cu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications; Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
Turquoise var: Rashleighite
Formula: Cu(Al,Fe)6(PO4)4(OH)8 · 5H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications
Wavellite
Formula: Al3(PO4)2(OH,F)3 · 5H2O
Reference: Goley, P. and Williams R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications; Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
'Wolframite'
Formula: (Fe2+)WO4 to (Mn2+)WO4
Reference: Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56
'Zinnwaldite'
Reference: Hey M H, Bannister F A, Russell A (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Bismuth1.CA.05Bi
Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Bismuthinite2.DB.05Bi2S3
Löllingite2.EB.15aFeAs2
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Cassiterite4.DB.05SnO2
Cuprite4.AA.10Cu2O
Quartz4.DA.05SiO2
Russellite (TL)4.DE.15Bi2WO6
Group 8 - Phosphates, Arsenates and Vanadates
Cacoxenite8.DC.40Fe3+24AlO6(PO4)17(OH)12 · 75H2O
Scorodite8.CD.10Fe3+AsO4 · 2H2O
Turquoise8.DD.15Cu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
var: Rashleighite8.DD.15Cu(Al,Fe)6(PO4)4(OH)8 · 5H2O
Wavellite8.DC.50Al3(PO4)2(OH,F)3 · 5H2O
Group 9 - Silicates
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Schorl9.CK.05Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Topaz9.AF.35Al2(SiO4)(F,OH)2
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)
'Psilomelane'-Mn, O
'Wolframite'-(Fe2+)WO4to (Mn2+)WO4
'Zinnwaldite'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Semi-metals and non-metals
Bismuth1.3.1.4Bi
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:3
Bismuthinite2.11.2.3Bi2S3
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Löllingite2.12.2.9FeAs2
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
AX2
Cassiterite4.4.1.5SnO2
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
(AB)5(XO4)2·xH2O
Scorodite40.4.1.3Fe3+AsO4 · 2H2O
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)7(XO4)4Zq·xH2O
Turquoise42.9.3.1Cu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
A3(XO4)2Zq·xH2O
Wavellite42.10.2.1Al3(PO4)2(OH,F)3 · 5H2O
Miscellaneous
Cacoxenite42.13.5.1Fe3+24AlO6(PO4)17(OH)12 · 75H2O
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
A2XO4
Russellite (TL)48.2.1.1Bi2WO6
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
Topaz52.3.1.1Al2(SiO4)(F,OH)2
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with borate groups
Schorl61.3.1.10Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Kaolinite-Al2(Si2O5)(OH)4
'Limonite'-(Fe,O,OH,H2O)
'Psilomelane'-Mn, O
Turquoise
var: Rashleighite
-Cu(Al,Fe)6(PO4)4(OH)8 · 5H2O
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4
'Zinnwaldite'-

List of minerals for each chemical element

HHydrogen
H CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
H PhlogopiteKMg3(AlSi3O10)(OH)2
H Turquoise (var: Rashleighite)Cu(Al,Fe)6(PO4)4(OH)8 · 5H2O
H TopazAl2(SiO4)(F,OH)2
H TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
H WavelliteAl3(PO4)2(OH,F)3 · 5H2O
H Limonite(Fe,O,OH,H2O)
H SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
H KaoliniteAl2(Si2O5)(OH)4
H ScoroditeFe3+AsO4 · 2H2O
BBoron
B SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
O RusselliteBi2WO6
O CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
O PhlogopiteKMg3(AlSi3O10)(OH)2
O Turquoise (var: Rashleighite)Cu(Al,Fe)6(PO4)4(OH)8 · 5H2O
O TopazAl2(SiO4)(F,OH)2
O TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
O WavelliteAl3(PO4)2(OH,F)3 · 5H2O
O Wolframite(Fe2+)WO4 to (Mn2+)WO4
O CassiteriteSnO2
O Limonite(Fe,O,OH,H2O)
O QuartzSiO2
O SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
O KaoliniteAl2(Si2O5)(OH)4
O ScoroditeFe3+AsO4 · 2H2O
O CupriteCu2O
O PsilomelaneMn, O
FFluorine
F TopazAl2(SiO4)(F,OH)2
F WavelliteAl3(PO4)2(OH,F)3 · 5H2O
F FluoriteCaF2
NaSodium
Na SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
MgMagnesium
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
AlAluminium
Al CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al Turquoise (var: Rashleighite)Cu(Al,Fe)6(PO4)4(OH)8 · 5H2O
Al TopazAl2(SiO4)(F,OH)2
Al TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
Al WavelliteAl3(PO4)2(OH,F)3 · 5H2O
Al SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Al KaoliniteAl2(Si2O5)(OH)4
SiSilicon
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si TopazAl2(SiO4)(F,OH)2
Si QuartzSiO2
Si SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Si KaoliniteAl2(Si2O5)(OH)4
PPhosphorus
P CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
P Turquoise (var: Rashleighite)Cu(Al,Fe)6(PO4)4(OH)8 · 5H2O
P TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
P WavelliteAl3(PO4)2(OH,F)3 · 5H2O
SSulfur
S ArsenopyriteFeAsS
S BismuthiniteBi2S3
KPotassium
K PhlogopiteKMg3(AlSi3O10)(OH)2
CaCalcium
Ca FluoriteCaF2
MnManganese
Mn Wolframite(Fe2+)WO4 to (Mn2+)WO4
Mn PsilomelaneMn, O
FeIron
Fe ArsenopyriteFeAsS
Fe CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Fe LöllingiteFeAs2
Fe Turquoise (var: Rashleighite)Cu(Al,Fe)6(PO4)4(OH)8 · 5H2O
Fe TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
Fe Wolframite(Fe2+)WO4 to (Mn2+)WO4
Fe Limonite(Fe,O,OH,H2O)
Fe SchorlNa(Fe32+)Al6(Si6O18)(BO3)3(OH)3(OH)
Fe ScoroditeFe3+AsO4 · 2H2O
CuCopper
Cu Turquoise (var: Rashleighite)Cu(Al,Fe)6(PO4)4(OH)8 · 5H2O
Cu TurquoiseCu(Al,Fe3+)6(PO4)4(OH)8 · 4H2O
Cu CopperCu
Cu CupriteCu2O
AsArsenic
As ArsenopyriteFeAsS
As LöllingiteFeAs2
As ScoroditeFe3+AsO4 · 2H2O
SnTin
Sn CassiteriteSnO2
WTungsten
W RusselliteBi2WO6
W Wolframite(Fe2+)WO4 to (Mn2+)WO4
BiBismuth
Bi RusselliteBi2WO6
Bi BismuthBi
Bi BismuthiniteBi2S3

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)
Hey, M.H, Bannister, F.A. and Russell, A. (1938) Russellite, a new British mineral, Mineralogical Magazine, 25, 41-56.
Ryback, G., Nawaz, R. and Farley, E. (1988) Seventh Supplementary List of British Isles Minerals (Irish). Mineralogical Magazine, vol. 52, n° 365, pp. 267-274.

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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