Ref.: Geological Survey of Canada Miscellaneous Report 39.
In granite pegmatite dyke intruding amphibolite and granite gneiss.
"The deposit was opened as a feldspar prospect by P.J. Dwyer in 1926. A cut was made into the side of a hill, it measures 18 m by 6 m with a 15-m face at the southwest end. There was no production from this cut but a similar pegmatite dyke 120 m to the south was worked in 1920 and 1926 from a side-hill cut measuring 44 m by 3 m; it produced 135 t of feldspar."