Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Roskrow United Mine, Perranarworthal, Cornwall, England, UKi
Regional Level Types
Roskrow United MineMine
PerranarworthalCivil Parish
CornwallCounty
EnglandConstituent Country
UKCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
50° 11' 48'' North , 5° 8' 15'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW761378
Type:
KΓΆppen climate type:
Nearest Settlements:
PlacePopulationDistance
Ponsanooth967 (2017)0.5km
Perranwell1,207 (2017)2.2km
Stithians1,463 (2017)3.0km
Devoran400 (2014)3.5km
Penryn7,326 (2011)4.0km
Mindat Locality ID:
931
Long-form identifier:
mindat:1:2:931:4
GUID (UUID V4):
8903d2c6-e41c-4246-a41c-9564dfd4e297
Other/historical names associated with this locality:
South Tresavean Mine; Ballamoon Mine; Wheal Gal


Worked from 1860 to 1870, and re-worked in 1912. The mine was producing silver and uranium, but there are no records about its output. The main adit, which was explored during the late 1950s by the Atomic Energy Authority, has its portal at the foot of a quarry to the left of the footpath leading from the disused mill to the old railway.

Located NE of Ponsanooth.


Note: Wheal Gal is a complete misnomer from Hill et al. (1906) who listed a mine of that name as an occurrence of cobalt ores, quoting Pryce (1778, p. 50). The latter author however only states that "very good cobalt has also been discovered [...] in a mine wrought for tin and gal [gossan] near Pons-Nooth in Perran-Arwothall." This undoubtedly refers to Roskrow United Mine.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


12 valid minerals.

Detailed Mineral List:

β“˜ Arsenopyrite
Formula: FeAsS
β“˜ Cassiterite
Formula: SnO2
β“˜ Chalcopyrite
Formula: CuFeS2
β“˜ 'Chlorite Group'
β“˜ Coffinite
Formula: U(SiO4) · nH2O
Description: Replacements of and pseudomorphs (< 5 mm) after colloform pitchblende.
β“˜ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜ Galena
Formula: PbS
Description: Found in 1863
β“˜ Galena var. Silver-bearing Galena
Formula: PbS with Ag
Description: Found in 1863
β“˜ Nickeline
Formula: NiAs
β“˜ Pyrite
Formula: FeS2
β“˜ Rammelsbergite
Formula: NiAs2
β“˜ Silver
Formula: Ag
Description: Found in 1863
β“˜ Skutterudite
Formula: CoAs3
β“˜ Uraninite
Formula: UO2
β“˜ Uraninite var. Pitchblende
Formula: UO2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Silver1.AA.05Ag
Group 2 - Sulphides and Sulfosalts
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Nickeline2.CC.05NiAs
β“˜Galena2.CD.10PbS
β“˜var. Silver-bearing Galena2.CD.10PbS with Ag
β“˜Pyrite2.EB.05aFeS2
β“˜Rammelsbergite2.EB.15aNiAs2
β“˜Arsenopyrite2.EB.20FeAsS
β“˜Skutterudite2.EC.05CoAs3
Group 4 - Oxides and Hydroxides
β“˜Cassiterite4.DB.05SnO2
β“˜Uraninite
var. Pitchblende
4.DL.05UO2
β“˜4.DL.05UO2
Group 9 - Silicates
β“˜Coffinite9.AD.30U(SiO4) Β· nH2O
β“˜Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Unclassified
β“˜'Chlorite Group'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ CoffiniteU(SiO4) · nH2O
Hβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
OOxygen
Oβ“˜ CassiteriteSnO2
Oβ“˜ CoffiniteU(SiO4) · nH2O
Oβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oβ“˜ Uraninite var. PitchblendeUO2
Oβ“˜ UraniniteUO2
AlAluminium
Alβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SiSilicon
Siβ“˜ CoffiniteU(SiO4) · nH2O
Siβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
SSulfur
Sβ“˜ ArsenopyriteFeAsS
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ GalenaPbS
Sβ“˜ PyriteFeS2
Sβ“˜ Galena var. Silver-bearing GalenaPbS with Ag
CaCalcium
Caβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
FeIron
Feβ“˜ ArsenopyriteFeAsS
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feβ“˜ PyriteFeS2
CoCobalt
Coβ“˜ SkutteruditeCoAs3
NiNickel
Niβ“˜ NickelineNiAs
Niβ“˜ RammelsbergiteNiAs2
CuCopper
Cuβ“˜ ChalcopyriteCuFeS2
AsArsenic
Asβ“˜ ArsenopyriteFeAsS
Asβ“˜ NickelineNiAs
Asβ“˜ RammelsbergiteNiAs2
Asβ“˜ SkutteruditeCoAs3
AgSilver
Agβ“˜ SilverAg
Agβ“˜ Galena var. Silver-bearing GalenaPbS with Ag
SnTin
Snβ“˜ CassiteriteSnO2
PbLead
Pbβ“˜ GalenaPbS
Pbβ“˜ Galena var. Silver-bearing GalenaPbS with Ag
UUranium
Uβ“˜ CoffiniteU(SiO4) · nH2O
Uβ“˜ Uraninite var. PitchblendeUO2
Uβ“˜ UraniniteUO2

Geochronology

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Paleozoic
  Permian
   Guadalupian
β“˜ Major polymetallic mineralization~270 MaCornwall, England, UK
   Cisuralian
β“˜ Porphyry dikes intruded (latest age)~275 MaCornwall, England, UK
β“˜ Greisenization (latest age)~280 MaCornwall, England, UK
β“˜ Porphyry dikes intruded (earliest age)~280 MaCornwall, England, UK
β“˜ Formation of metallized pegmatites~285 MaCornwall, England, UK
β“˜ Greisenization (earliest age)~285 MaCornwall, England, UK
β“˜ 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

 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are Β© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 25, 2024 02:11:45 Page updated: March 26, 2024 11:28:23
Go to top of page