A giant alkaline pegmatite. This quarry is the source of the rocks found at the CN Rock Dump in central Bancroft.
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.
Mineral List:16 entries listed. 10 valid minerals.
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!