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Wheal Friendship, Mary Tavy, Tavistock District, Devon, England, UK

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Latitude & Longitude (WGS84): 50° 35' 40'' North , 4° 6' 29'' West
Latitude & Longitude (decimal): 50.5944444444, -4.10805555556
UK National Grid Reference:SX508794

Worked from late 1700's to 1925 principally for copper then later for tin and arsenic as at Devon Great Consols. The site was extended in the 1880's with the sinking of Bennetts shaft (SX510792) when the name changed to Devon Friendship. The stack at Brentons shaft was demolished by the TA in 1954 apparently causing damage to surrounding houses. Ref.: (in part): Rocks & Min.: 16:129.
Ref: Richardson P.H.G. (1991) Mines of Dartmoor & the Taymar Valley after 1913, Devon Books, Tiverton.

Mineral List

19 valid minerals.

The above list contains all mineral locality references listed on 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 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.


Braithwaite, R, S, W., (1982) Wroewolfeite in Britain. Mineralogical Record 13(3) 167-170, 174.

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