Ref.: Geological Survey of Canada Miscellaneous Report 39.
In calcie vein cutting granite.
"The deposit is exposed by an open-cut measuring 9 m in diameter on the north slope of a ridge facing Old Mumford Road. It was mined by Mr. P.J. Dwyer who shipped 33.5 t of ore in 1918."
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Exploring the Dwyer Fluorite Mine by Michal Adamowicz
Mineral List
6 entries listed. 5 valid minerals.
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