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North Roskear Mine, North Roskear, Camborne, Cornwall, England, UKi
Regional Level Types
North Roskear MineMine (Abandoned)
North RoskearMine (Abandoned)
CamborneCivil Parish
CornwallCounty
EnglandConstituent Country
UKCountry

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Latitude & Longitude (WGS84):
50° 13' 27'' North , 5° 17' 21'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW654413
Type:
Mine (Abandoned) - last checked 2019
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Camborne22,500 (2012)1.4km
Portreath963 (2017)4.0km
Four Lanes1,416 (2017)4.3km
North Country773 (2017)4.7km
Redruth42,690 (2017)4.7km
Mindat Locality ID:
977
Long-form identifier:
mindat:1:2:977:6
GUID (UUID V4):
0


North Roskear mine, started in 1816 and closed in 1874, was one of the most productive copper mines in the area. From 1862, it included the northern part of Wheal Crofty which adjoined it on the east. In 1864 and 1865, it was worked together with the South Roskear group and other adjoining mines under the name Roskear Mines. Around 1898, when the property was acquired by the West Dolcoath Exploration Syndicate, it became part of Dolcoath Mine, but no further development was undertaken after the existence of a rich tin ground believed to exist below the copper ore zone could not be proven. It finally was included with South Crofty Mine when they took over most of the Dolcoath Mine sett in 1935.

The mine worked the North Roskear main lode and three intersecting lodes two of which are known as Blewet's and Caunter lodes while the third is unnamed. Coordinates given are those of Old Doctor's shaft. Both Dines and Hamilton Jenkin point out that the mine is erroneously indicated too far north on the 1:10,000 Ordnance Survey map (Sheet 63NW).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


11 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Arsenopyrite
Formula: FeAsS
'Axinite Group'
Cassiterite
Formula: SnO2
Chalcopyrite
Formula: CuFeS2
'Chlorite Group'
Dolomite
Formula: CaMg(CO3)2
Fluorite
Formula: CaF2
Galena
Formula: PbS
'Monazite Group'
Formula: REE(PO4)
Opal
Formula: SiO2 · nH2O
'Petroleum var. Bitumen'
Quartz
Formula: SiO2
Quartz var. Haytorite
Formula: SiO2
Quartz var. Prase
Formula: SiO2
Quartz var. Rock Crystal
Formula: SiO2
Sphalerite
Formula: ZnS
'Tennantite Subgroup'
Formula: Cu6(Cu4C2+2)As4S12S
Wollastonite
Formula: Ca3(Si3O9)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Sphalerite2.CB.05aZnS
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Arsenopyrite2.EB.20FeAsS
'Tennantite Subgroup'2.GB.05Cu6(Cu4C2+2)As4S12S
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
var. Rock Crystal4.DA.05SiO2
var. Prase4.DA.05SiO2
var. Haytorite4.DA.05SiO2
Opal4.DA.10SiO2 · nH2O
Cassiterite4.DB.05SnO2
Group 5 - Nitrates and Carbonates
Dolomite5.AB.10CaMg(CO3)2
Group 9 - Silicates
Actinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Wollastonite9.DG.05Ca3(Si3O9)
Unclassified
'Chlorite Group'-
'Monazite Group'-REE(PO4)
'Petroleum
var. Bitumen'
-
'Axinite Group'-

List of minerals for each chemical element

HHydrogen
H Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
H OpalSiO2 · nH2O
CCarbon
C DolomiteCaMg(CO3)2
OOxygen
O Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
O CassiteriteSnO2
O DolomiteCaMg(CO3)2
O Monazite GroupREE(PO4)
O OpalSiO2 · nH2O
O QuartzSiO2
O WollastoniteCa3(Si3O9)
O Quartz var. Rock CrystalSiO2
O Quartz var. PraseSiO2
O Quartz var. HaytoriteSiO2
FFluorine
F FluoriteCaF2
MgMagnesium
Mg Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mg DolomiteCaMg(CO3)2
SiSilicon
Si Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Si OpalSiO2 · nH2O
Si QuartzSiO2
Si WollastoniteCa3(Si3O9)
Si Quartz var. Rock CrystalSiO2
Si Quartz var. PraseSiO2
Si Quartz var. HaytoriteSiO2
PPhosphorus
P Monazite GroupREE(PO4)
SSulfur
S ArsenopyriteFeAsS
S ChalcopyriteCuFeS2
S GalenaPbS
S SphaleriteZnS
S Tennantite SubgroupCu6(Cu4C22+)As4S12S
CaCalcium
Ca Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Ca DolomiteCaMg(CO3)2
Ca FluoriteCaF2
Ca WollastoniteCa3(Si3O9)
FeIron
Fe Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Fe ArsenopyriteFeAsS
Fe ChalcopyriteCuFeS2
CuCopper
Cu ChalcopyriteCuFeS2
Cu Tennantite SubgroupCu6(Cu4C22+)As4S12S
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS
As Tennantite SubgroupCu6(Cu4C22+)As4S12S
SnTin
Sn CassiteriteSnO2
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

Other Regions, Features and Areas containing this locality

British and Irish 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.

References

 
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