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Downgate Mine, Stoke Climsland, Callington District, Cornwall, England, UK

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A small tin and tungsten mine in the valley north of Downgate. The main source of ore was a deposit of eluvial wash, up to 12 feet thick, that covered the eastern side of the valley and was worked from open pits. It was composed of angular fragments of country rocks and veinstones and yielded 2-7 lb on average of tin and tungsten ores per cubic yard, but individual values were erratic. In addition, a SE-trending lode with arsenopyrite and wolframite was opened up from an adit near the road bridge at Downgate. The grid reference marks the approximate position of the adit portal.

The mine was active from 1910 until 1919 and produced a few tons of tin and tungsten concentrates, but these were difficult to process. In 1942-1943, the deposit was prospected for tungsten again, and it was found that the concentrates contained much ilmenite.

Mineral List



4 entries listed. 3 valid minerals.

The above list 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

Richardson, P.H.G. (1992): Mines of Dartmoor and the Tamar Valley after 1913. Northern Mine Research Society (Sheffield), 160 pp.

Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 2, p. 635.

Mineral and/or Locality  
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