IMPORTANT MESSAGE. We need your support now to keep mindat.org running. Click here to find out why.
Log InRegister
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 Articles
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 CompaniesStatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Treskerby and Chance United Mine (incl. Treskerby Mine; Wheal Chance), Redruth, Cornwall, England, UK

This page is currently not sponsored. Click here to sponsor this page.
Key
Lock Map
Latitude & Longitude (WGS84): 50° 14' 57'' North , 5° 12' 15'' West
Latitude & Longitude (decimal): 50.24935,-5.20417
GeoHash:G#: gbumced7w
UK National Grid Reference:SW716438
Locality type:Mine
Köppen climate type:Cfb : Temperate oceanic climate


This mine was formed in 1828 by amalgamation of Treskerby Mine and Wheal Chance. Both mines were working lodes in metamorphosed killas overlying the northern flank of the Carn Marth granite. The Treskerby sett adjoins the eastern boundary of Wheal Boys, marked by the County Crosscourse, which also defines the boundaries of the mines further north. To the east, it is adjoined by Wheal Chance. The shafts and workings were located on both sides of the Redruth-Truro road, but much of this area is now built over. To the south, the sett once extended 900 yards SE of Treskerby village, and for some time also included the Park-an-Chy Mine. Some dumps are located in woodland south of the Redruth-Turo road.

The mines were already active in 1800, and were abandoned a couple of years after their amalgamation. In 1860, the property was re-opened and partially dewatered. From 1815 to 1832, 47,545 tons of 9.5% copper ore were produced. During that period, the Treskerby section also raised 9 tons of black tin. Another 18,500 tons of 9% copper ore were produced from 1922 to 1927. Due to wolframite-bearing ore having been found in the dumps of Treskerby Mine, prospection works were carried out in 1938, but the source of the tungsten ore was not encountered.

Regions containing this locality

Devon and Cornwall metalliferous mining district, England, UK

District - 752 mineral species & varietal names listed

Camborne-Redruth and St Day Mining District, Cornwall, England, UK

Mining District - 257 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


7 valid minerals.

Detailed Mineral List:

'Bitumen'
Reference: Henwood, W.J. (1843): Transactions of the Royal Geological Society of Cornwall 5, 1-386; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Cassiterite
Formula: SnO2
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, p. 380.
Chalcopyrite
Formula: CuFeS2
Reference: Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Copper
Formula: Cu
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 31; Smyth, W.M., Reeks, T., and Rudler, F.W. (1864): A Catalogue of the Mineral Collections in the Museum of Practical Geology. HMSO Publications (London), 190 pp.; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Cuprite
Formula: Cu2O
Reference: Smyth, W.M., Reeks, T., and Rudler, F.W. (1864): A Catalogue of the Mineral Collections in the Museum of Practical Geology. HMSO Publications (London), 190 pp.; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Hill, J.B., MacAlister, D.A., and Flett, J.S. (1906): The geology of Falmouth and Truro and of the mining district of Camborne and Redruth. HSMO Publications (London), 335 pp.
Fluorite
Formula: CaF2
Reference: Bernie Millington collection
Opal
Formula: SiO2 · nH2O
Reference: Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.
'Petroleum'
Reference: Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 108; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
Quartz
Formula: SiO2
Reference: Smyth, W.M., Reeks, T., and Rudler, F.W. (1864): A Catalogue of the Mineral Collections in the Museum of Practical Geology. HMSO Publications (London), 190pp.
'Wolframite'
Formula: (Fe2+)WO4 to (Mn2+)WO4
Reference: Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, p. 379.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Copper'1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
'Chalcopyrite'2.CB.10aCuFeS2
Group 3 - Halides
'Fluorite'3.AB.25CaF2
Group 4 - Oxides and Hydroxides
'Cassiterite'4.DB.05SnO2
'Cuprite'4.AA.10Cu2O
'Opal'4.DA.10SiO2 · nH2O
'Quartz'4.DA.05SiO2
Unclassified Minerals, Rocks, etc.
'Bitumen'-
'Petroleum'-
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4

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
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
AX2
Cassiterite4.4.1.5SnO2
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Unclassified Minerals, Rocks, etc.
'Bitumen'-
'Petroleum'-
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4

List of minerals for each chemical element

HHydrogen
H OpalSiO2 · nH2O
OOxygen
O CassiteriteSnO2
O CupriteCu2O
O OpalSiO2 · nH2O
O QuartzSiO2
O Wolframite(Fe2+)WO4 to (Mn2+)WO4
FFluorine
F FluoriteCaF2
SiSilicon
Si OpalSiO2 · nH2O
Si QuartzSiO2
SSulfur
S ChalcopyriteCuFeS2
CaCalcium
Ca FluoriteCaF2
MnManganese
Mn Wolframite(Fe2+)WO4 to (Mn2+)WO4
FeIron
Fe ChalcopyriteCuFeS2
Fe Wolframite(Fe2+)WO4 to (Mn2+)WO4
CuCopper
Cu ChalcopyriteCuFeS2
Cu CopperCu
Cu CupriteCu2O
SnTin
Sn CassiteriteSnO2
WTungsten
W Wolframite(Fe2+)WO4 to (Mn2+)WO4

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

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Early Carboniferous
323.2 - 358.9 Ma



ID: 3192903
Paleozoic sedimentary rocks

Age: Mississippian (323.2 - 358.9 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Late Devonian
358.9 - 382.7 Ma



ID: 3135052
Late Devonian claystone

Age: Late Devonian (358.9 - 382.7 Ma)

Lithology: Claystone

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Middle Devonian
382.7 - 393.3 Ma



ID: 2035678
Middle Devonian (Undifferentiated)

Age: Middle Devonian (382.7 - 393.3 Ma)

Lithology: Mudstone, siltstone and sandstone

Reference: British Geological Survey. DiGMapGB-625. British Geological Survey ©NERC. [23]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
- Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 377-380.


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.
Mineral and/or Locality  
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 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: November 18, 2018 18:30:16 Page generated: September 12, 2018 14:32:07
Go to top of page