Beautiful sharp, bladed crystals of manganite from Steep Rock. These are brilliantly lustrous and are super under magnification. A saw cut at the base, stands perfectly for display as photographed. From the Pete Richards collection, very nice manganite crystals!
About the Mines of Atikokan, Ontario
Located in northwestern Ontario, the large mines at Atikokan were once huge iron producers. Financed and developed during the Second World War effort, these mines were brought into production to shore up US iron supplies. These were massive mines – the amount of earth and rock moved was twice that moved to build the Panama Canal, in half the time (!). The mines closed in 1979-80. Although they produced fine specimens, they are not broadly known among collectors around the world, as they would be if they were producing today. They are best known for excellent specimens of crystallized manganite.