UK Grid Reference: SW754433
Latitude: 50°14'46"N
Longitude: 5°9'2"W
A small mine, worked intermittently from 1800 to 1840. Dines notes a series of shaft dumps at a distance of 125 yards along a northeast trending line, which may have followed a lode, but no mine plans exist. In 1860, the mine was reworked as New Wheal Clifford, and in 1873, it was tried again under the name Tregothnan United Mines, but both workings were above adit only.
Between 1862 and 1870, Wheal Prosper raised 311 tons of 2.5% copper ore, 86 tons of black tin and 209 tons of arsenic. It also produced a large quantity of blende.
References
- Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, p. 432 (see also the corrigenda in the 1994 reprint).
Mineral List
2 entries listed. 2 valid minerals.
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