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Madawaska Mine (Faraday Mine), Faraday Township, Hastings Co., Ontario, Canada

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A former uranium mine that was discovered in late 1953 by diamond drilling. There was little surface expression of the ore body. The property is underlain by highly altered ans strongly deformed Precambrian igneous and sedimentary rocks, predominantly paragneiss with minor amphibolite, gabbro, and locally recrystallized limestone.
The ore occurs in a granite pegmatite dyke system in mafic gneiss. The main ore mineral was uraninite which seldom formed crystals larger than 5mm.
and Underground development started in 1954 by Faraday Uranium Mines Ltd. Production started 1957 and closed in 1964. Production lasted until 1964 when contracts to sell uranium expired. "Mining operations were resumed in 1975 by Madawaska Mines Ltd." The 444m (1,440 feet deep) shaft was deepened to 473m (1,537 feet). Production began in 1976 and lasted until 1982. Other workings underground include a 50m shaft and three adits. 2,544,716 tons of ore were produced, averaging .1074% U3O8.


The ilmenite/magnetite occurrence has been moved to a separate locality because, although specimens are often labeled as being from the mine, the occurrence is actually elsewhere on the property.
See: http://www.mindat.org/loc-41088.html

Mineral List



53 entries listed. 38 valid minerals.

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References

Geological Survey of Canada, Miscellaneous Report 39
Rocks & Min. 59: 206-210.
Griffith,J.W. 1967. The Uranium Industry-It’s History,Technology and Prospects, Mineral Report 12, Mineral Resource Division, Department of Energy, Mines and Resources, Ottawa, Canada p225-240

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