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Wheal Druid, Carn Brea Mine, Pool, Carn Brea, Cornwall, England, UK

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Latitude & Longitude (WGS84): 50° 13' 27'' North , 5° 14' 54'' West
Latitude & Longitude (decimal): 50.22444,-5.24861
UK National Grid Reference:SW683412
Other regions containing this locality:Devon and Cornwall metalliferous mining district, England, UK


A small mine, started around 1800 and initially worked for copper. In 1831, after some time of inactivity, it was amalgamated with Carn Brea Mine, along with the neigbouring Barncoose Mine and Wheal Fanny (the latter including Tregajorran Mine). The Druid section was abandoned in 1914, when the values at depth had become irregular and the recovery poor.

The sett includes two NE-trending lodes, known as Druid's North Lode, which carried copper ores, and Druid's South Lode, which carried copper an tin ores (this lode is the same as Providence Lode of Tincroft Mine). They are hosted in granite on the west, but eastwards pass into metamorphosed killas. Druid's South Lode was opened up from a series of shafts over a distance of about 750 yards along its strike. From southwest to northeast, these were New Shaft and Monument Shaft (both in Carn Brea section), Druid's Engine Shaft and Macdonald's Shaft. Until 1818, the workings reached a depth of 68 fms below adit (100 fms below surface; Thomas, 1819). Some of the shafts can still be traced from a series of dumps at the foot of Carn Brea. The grid reference marks the site of Druid's Engine Shaft, of which nothing remains.

As a separate mine, Wheal Druid raised 176 tons of copper ore in 1816 and 1817. Later outputs are included in the figures for Carn Brea Mine.

Mineral List


16 valid minerals.

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

Permian - Carboniferous
252.17 - 358.9 Ma
Unnamed Igneous Intrusion, Carboniferous To Permian

Age: Paleozoic (252.17 - 358.9 Ma)

Lithology: Felsic-rock

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



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

Thomas, R. (1819): Report on a survey of the mining district of Cornwall, from Chasewater to Camborne. John Cary (London), 78 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.

Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 313-317.

Hamilton Jenkin, A. K. (1965): Mines and Miners of Cornwall, Vol. 10: Camborne - Illogan. Truro Bookshop (Truro), p. 38.

Lapis 11(2), 23 (1986)

(in part): Dana 6, 44

Mineral and/or Locality  
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