New Tolgus Shaft, Tarewaste, Redruth, Cornwall, England, UKi
| Regional Level Types | |
|---|---|
| New Tolgus Shaft | Group of Shafts |
| Tarewaste | Conservation Area |
| Redruth | Civil Parish |
| Cornwall | County |
| England | Constituent Country |
| UK | Country |
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Latitude & Longitude (WGS84):
50° 14' 5'' North , 5° 14' 47'' West
Latitude & Longitude (decimal):
UK National Grid Reference:
SW685424
Type:
Group of Shafts
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Redruth | 42,690 (2017) | 1.6km |
| North Country | 773 (2017) | 1.8km |
| Four Lanes | 1,416 (2017) | 3.7km |
| Portreath | 963 (2017) | 4.2km |
| Camborne | 22,500 (2012) | 4.3km |
In 1918, the Tolgus groups were acquired by East Pool and Agar Ltd. in order to develop the tin ground that was believed to lie below the copper orebodies of these mines. From 1923 to 1927, New Tolgus shaft was sunk within the Great South Tolgus sett to a depth of 2,000 feet to open up deep ground. At depths of 490 feet, 1,000 feet, 1,700 feet and 2,000 feet, crosscuts and prospection boreholes were driven. The shaft passed mainly through killas; at around 800 feet, a 200 feet thick greenstone layer was hit. Above this layer, elvans and barren quartz strings were encountered; below, more greenstone bands and occasional aplite veins were passed through. Lode fragments occurred at various depths below 1,000 feet, but they contained only traces of tin. Since the bores and crosscuts also failed to hit any economic mineralization, the project was abandoned; no work was carried out in the Tolgus sections after 1927.
The reference to danalite at New Tolgus Shaft is a Kingsbury (1961) citation. Given the doubts about the provenance of other Kingsbury specimens (Ryback et al. 1998, 2001), further confirmation is required.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
9 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 DiagramDetailed Mineral List:
| ⓘ Augite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ 'Axinite Group' |
| ⓘ Cassiterite Formula: SnO2 |
| ⓘ Chamosite Formula: (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 |
| ⓘ Chamosite var. Daphnite Formula: (Fe,Mg)5Al(Si,Al)4O10(OH)8 |
| ⓘ Danalite ? Formula: Be3Fe2+4(SiO4)3S |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ 'Hornblende Root Name Group' Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 |
| ⓘ Kaolinite Formula: Al2(Si2O5)(OH)4 |
| ⓘ Native Arsenic Formula: As |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Arsenic | 1.CA.05 | As |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Cassiterite | 4.DB.05 | SnO2 |
| Group 9 - Silicates | |||
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ | Chamosite | 9.EC.55 | (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 |
| ⓘ | var. Daphnite | 9.EC.55 | (Fe,Mg)5Al(Si,Al)4O10(OH)8 |
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| ⓘ | Danalite ? | 9.FB.10 | Be3Fe2+4(SiO4)3S |
| Unclassified | |||
| ⓘ | 'Hornblende Root Name Group' | - | ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2 |
| ⓘ | 'Axinite Group' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Chamosite | (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 |
| H | ⓘ Chamosite var. Daphnite | (Fe,Mg)5Al(Si,Al)4O10(OH)8 |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Be | Beryllium | |
| Be | ⓘ Danalite | Be3Fe42+(SiO4)3S |
| O | Oxygen | |
| O | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| O | ⓘ Cassiterite | SnO2 |
| O | ⓘ Chamosite | (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 |
| O | ⓘ Chamosite var. Daphnite | (Fe,Mg)5Al(Si,Al)4O10(OH)8 |
| O | ⓘ Danalite | Be3Fe42+(SiO4)3S |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| F | Fluorine | |
| F | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Mg | Magnesium | |
| Mg | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Mg | ⓘ Chamosite | (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 |
| Mg | ⓘ Chamosite var. Daphnite | (Fe,Mg)5Al(Si,Al)4O10(OH)8 |
| Al | Aluminium | |
| Al | ⓘ Chamosite | (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 |
| Al | ⓘ Chamosite var. Daphnite | (Fe,Mg)5Al(Si,Al)4O10(OH)8 |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Al | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Si | Silicon | |
| Si | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Si | ⓘ Chamosite | (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 |
| Si | ⓘ Chamosite var. Daphnite | (Fe,Mg)5Al(Si,Al)4O10(OH)8 |
| Si | ⓘ Danalite | Be3Fe42+(SiO4)3S |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| S | Sulfur | |
| S | ⓘ Danalite | Be3Fe42+(SiO4)3S |
| S | ⓘ Sphalerite | ZnS |
| Cl | Chlorine | |
| Cl | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Ca | Calcium | |
| Ca | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Hornblende Root Name Group | ◻Ca2(Z42+Z3+)(AlSi7O22)(OH,F,Cl)2 |
| Fe | Iron | |
| Fe | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Fe | ⓘ Chamosite | (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8 |
| Fe | ⓘ Chamosite var. Daphnite | (Fe,Mg)5Al(Si,Al)4O10(OH)8 |
| Fe | ⓘ Danalite | Be3Fe42+(SiO4)3S |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Native Arsenic | As |
| Sn | Tin | |
| Sn | ⓘ Cassiterite | SnO2 |
Geochronology
| Geologic Time | Rocks, Minerals and Events | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Phanerozoic | ||||||||||||||||||||||
| Paleozoic | ||||||||||||||||||||||
| Permian | ||||||||||||||||||||||
| Guadalupian |
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| 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
- Cornwall
- Camborne-Redruth and St Day Mining DistrictMining District
- Devon and Cornwall metalliferous mining districtMining District
- Cornwall
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New Tolgus Shaft, Tarewaste, Redruth, Cornwall, England, UK