Ref.: Geological Survey of Canada Paper 70-50.
In pegmatite.
The deposit was discovered in 1941 by J. Purdy and H. MacDonald of Eau Claire. They recovered about $20,000 worth of muscovite in 1941 and 1942. The deposit was later operated by Purdy Mica Mines Limited (19442-1945) and by Northern Mica Company (1949-1953). The total production amounted to 2,942,786 pounds of mica valued at $1,577,326. The mica was trimmed in shops at Mattawa and North Bay. The mine was worked by open-cuts, an adit, and shafts. The deepest opening is 130 feet.
Mineral List:19 entries listed. 11 valid minerals.
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