A giant alkaline pegmatite. This quarry is the source of the rocks found at the CN Rock Dump in central Bancroft.
The Goulding-Keene Quarry was worked for nepheline from 1927 to 1939 by New England Nepheline Company, the quarry which is 25 meters long, 18 wide, with a 12 meter face, was cut into east side of a hill of the west bank of the York River.
Collecting at the Goulding-Keene Quarry is now prohibited as it is part of the Egan Chutes Ontario Park. Collecting is still permitted at the CN Dump in central Bancroft, where material from this quarry has been deposited.
References:
Ann P. Sabina. Geological Survey of Canada, Miscellaneous Report 39, page 15, Goulding-Keene Quarry.
Mineral List:16 entries listed. 10 valid minerals.
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