No output is recorded but most likely a lead silver mine given the location. Dumps contained quartz, sphalerite and fluorite but are now cleared or totally overgrown.
Ref: Dines H.G. 1956
Acicular Wurtzite and Sphalerite from the
Lockridge Mine, Bere Alston, Devon
Ben A. Grguric
Ernest H. Nickel
The dumps of Lockridge Mine near Bere Alston in south Devon contain rich specimens of mixed zinc, lead and copper sulphides and sulphosalts overgrowing fluorite. Wurtzite-sphalerite intergrowths showing the ‘ice-fern’ texture, which is characteristic of wurtzite, are intergrown with silver-rich tetrahedrite, tennantite and galena. Close examination suggests that most of the zinc sulphide was deposited as wurtzite and then partially altered to sphalerite. A primary hypogene origin is suggested for all of the minerals described, with the excepetion of anglesite.
UK Journal of Mines and Minerology No27, 2006
Status: Site of Special Scientific Interest (SSSI)
National Grid Reference: SX 438663
Area: 0.62 (ha) 1.5 (ac)
Ordnance Survey Sheet 1:50,000: 201
1:10,000: SX 46 NW
Description and Reasons for Notification:
This small mine is situated towards the northern end of the large South Tamar lead lode. Although not reworked for fluorite like most local dumps it is nevertheless very rich in that mineral and sphalerite. Excellent specimens of green fluorite, sphalerite and vuggy quartz vein with carbonates can be obtained. Although there are few secondary minerals and practically no galena, the dump shows as a typical example of lead mineralisation outside the Carboniferous Limestone area.
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UK OS Grid Reference: SX437664
Map Reference: 50°28'33"N , 4°12'10"W
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