Roskrow United Mine, Perranarworthal, Cornwall, England, UKi
| Regional Level Types | |
|---|---|
| Roskrow United Mine | Mine |
| Perranarworthal | Civil Parish |
| Cornwall | County |
| England | Constituent Country |
| UK | Country |
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Latitude & Longitude (WGS84):
50° 11' 48'' North , 5° 8' 15'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW761378
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Ponsanooth | 967 (2017) | 0.5km |
| Perranwell | 1,207 (2017) | 2.2km |
| Stithians | 1,463 (2017) | 3.0km |
| Devoran | 400 (2014) | 3.5km |
| Penryn | 7,326 (2011) | 4.0km |
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.
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 ElementsDetailed Mineral List:
| ⓘ Arsenopyrite Formula: FeAsS |
| ⓘ Cassiterite Formula: SnO2 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ 'Chlorite Group' |
| ⓘ Coffinite Formula: U(SiO4) · nH2O Description: Replacements of and pseudomorphs (< 5 mm) after colloform pitchblende. |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ Galena Formula: PbS Description: Found in 1863 |
| ⓘ Galena var. Silver-bearing Galena Formula: PbS with Ag Description: Found in 1863 |
| ⓘ Native Silver Formula: Ag Description: Found in 1863 |
| ⓘ Nickeline Formula: NiAs |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Rammelsbergite Formula: NiAs2 |
| ⓘ Skutterudite Formula: CoAs3 References: |
| ⓘ Uraninite Formula: UO2 References: |
| ⓘ Uraninite var. Pitchblende Formula: UO2 References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Silver | 1.AA.05 | Ag |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Nickeline | 2.CC.05 | NiAs |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | var. Silver-bearing Galena | 2.CD.10 | PbS with Ag |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Rammelsbergite | 2.EB.15a | NiAs2 |
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| ⓘ | Skutterudite | 2.EC.05 | CoAs3 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Cassiterite | 4.DB.05 | SnO2 |
| ⓘ | Uraninite var. Pitchblende | 4.DL.05 | UO2 |
| ⓘ | 4.DL.05 | UO2 | |
| Group 9 - Silicates | |||
| ⓘ | Coffinite | 9.AD.30 | U(SiO4) · nH2O |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Coffinite | U(SiO4) · nH2O |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | Oxygen | |
| O | ⓘ Cassiterite | SnO2 |
| O | ⓘ Coffinite | U(SiO4) · nH2O |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Uraninite var. Pitchblende | UO2 |
| O | ⓘ Uraninite | UO2 |
| Al | Aluminium | |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | Silicon | |
| Si | ⓘ Coffinite | U(SiO4) · nH2O |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Ca | Calcium | |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Pyrite | FeS2 |
| Co | Cobalt | |
| Co | ⓘ Skutterudite | CoAs3 |
| Ni | Nickel | |
| Ni | ⓘ Nickeline | NiAs |
| Ni | ⓘ Rammelsbergite | NiAs2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| As | ⓘ Nickeline | NiAs |
| As | ⓘ Rammelsbergite | NiAs2 |
| As | ⓘ Skutterudite | CoAs3 |
| Ag | Silver | |
| Ag | ⓘ Native Silver | Ag |
| Ag | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Sn | Tin | |
| Sn | ⓘ Cassiterite | SnO2 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| U | Uranium | |
| U | ⓘ Coffinite | U(SiO4) · nH2O |
| U | ⓘ Uraninite var. Pitchblende | UO2 |
| U | ⓘ Uraninite | UO2 |
Geochronology
| Geologic Time | Rocks, Minerals and Events | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Phanerozoic | ||||||||||||||||||||||
| Paleozoic | ||||||||||||||||||||||
| Permian | ||||||||||||||||||||||
| Guadalupian |
| |||||||||||||||||||||
| Cisuralian |
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Other Regions, Features and Areas containing this locality
British and Irish IslesGroup of Islands
Eurasian PlateTectonic Plate
- Rheno-Hercynian BeltOrogenic Belt
EuropeContinent
UK
- England
- Cornubian mining districtMining District
- Cornwall
- Wendron and Falmouth Mining DistrictMining District
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