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Wheal Carpenter, Fraddam, Gwinear, St Erth - Gwithian Area, Cornwall, England, UK

Bayldonite
Wheal Carpenter, Fraddam, Gwinear, St Erth - Gwithian Area, Cornwall, England, UK

Photo: Steve Rust
UK Grid Reference: SW586353
Latitude: 50°10'4"N
Longitude: 5°22'50"W
A small mine which has a recorded history starting in 1792-1798. The next recorded working was from the early 1800's to 1818. And again from 1850 to 1855. The mine is known to have produced copper, tin and silver ores. But the only recorded output is 1230 tons of copper ore. The silver ore was in the form of capillary native silver. Engine (Red) lode (east-west) is intersected by a cross-course lode (north-south), this is where the silver may have come from. Silver mineralisation associated with the north-south cross-course faulting, is not unknown in Cornwall.

The site was largely destroyed about 20-30 years ago.

Copper Production

CopperOre(tons)Metal(tons)Value(£)
1854488.0016.601444.40
1855212.008.30745.00

Data for period 1854-1855 from "Cornish Mines, University of Exeter (1987)"

Specimens of adamite in the Natural History Museum, London supposedly collected here 1953-55 by Arthur Kingsbury (1906-68) are now considered "implausable" and are probably from Lavrion, Greece. This is one of a number of likely or definitely falsified Kingsbury localities.

Mineral List

Adamite ?
Anglesite
Bayldonite
Beudantite
Carminite
Cassiterite
Cornubite (TL)
Cornwallite
Linarite
'Liskeardite'
Malachite
Mimetite
Mixite
Philipsburgite
Plumbojarosite
Pseudomalachite
Quartz
Silver
Sphalerite


19 entries listed. 18 valid minerals. 1 type locality (valid mineral).

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References

- Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, p. 167.
- Claringbull, G.F., Hey, M.H., and Davis, R.J. (1959): Cornubite, a new mineral dimorphous with cornwallite. Mineralogical Magazine 32, 1–5.
- Ryback, G., Hart, A.D., and Stanley, C.J. (2001): Journal of the Russell Society 7(2)

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Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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