Griffith Mine, Bruce Lake Area, Kenora District, Ontario, Canada
Iron Formation Banded ironstone collected from waste rock dumps at former mine site.
© Derek Nicol
Iron Formation Banded iron formation with alternating magnetite-rich layers and siliceous layers containing hematite. Magnetite-rich layers are highly magnetic.
Iron Formation Alternating layers that are magnetite-rich and siliceous layers containing hematite.
Iron Formation Highly magnetic due to high magnetite content.
Iron Formation Example of the ore material from the former Griffith Mine. Alternating silica-rich (darker) and magnetite-rich bands.