Description:In this area is buried a boulder of magnetite, an iron oxide mineral that is heavy and magnetic. Formed from hot fluids that have transported iron within the Earth's crust. This boulder is a hidden target that may be located by geophysical methods.
Representing:A zone of mineralization associated with mountain building in the Canadian Cordillera during the Mesozoic and early Cenz
Original location:Marmora Quarry, Ontario
Estimated mass (tonnes):1.4
Donor:Courtesy of Aecon Group