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Brazil Lake Occurrence (Elizabeth Lake Mine; Espanola), Foster Township, Sudbury District, Ontario, Canada
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Latitude: 46°15'19"N
Longitude: 81°39'53"W
 
 
In lot 10, concession V, Foster Township, cobaltite, pyrrhotite, and chalcopyrite occur near the contact between a partly altered Nipissing-type gabbro body and hornfelsed calcareous siltstones of the Espanola Formation. The sulphides are in, and close to an east-west-trending quartz-carbonate vein which is as much as 40 feet (12m) wide and can be traced for several hundred feet (metres). An equally large north-trending vein barren of sulphides is exposed to the north. Pyrrhotite and chalcopyrite are found mainly within the quartz-carbonate vein whereas cobaltite occurs as euhedral crystals up to l inch (2.5 cm) in diameter in actinolite amphibolite along the walls of the vein. Both calcite and brown-weathering ankerite are present in the vein.

Stripping, trenching, and diamond drilling has been carried out on the occurrence. An adit 100 feet (30 m) long has been driven into a hill underlain by metagabbro.


Mineral List

Actinolite
Calcite
Chalcopyrite
Cobaltite
Copiapite
Dolomite
Erythrite
Marcasite
Pharmacosiderite
Pyrrhotite
Quartz
Römerite
Rozenite
Scorodite
Talc


15 entries listed. 15 valid minerals.

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References

Sabina, Ann P. (1991) Rocks and Minerals for the Collector: Sudbury to Winnipeg, Geological Survey of Canada Miscellaneous Report 49. pg 30-31

K. D. Card, K. D. (1984) Ontario Geological Survey Report 131 Geology of the Espanola-Whitefish Falls Area, District of Sudbury, Ontario

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Updated Mineral Entry: AmesiteFrom Uwe Kolitsch, 1st Sep 2014 18:19:05