Fig. 5 Photomicrograph of rusty gneiss underlying the ore at the Cole mine, 

 with pyrite growing in chlorite, surrounded by quartz, garnet and bleached mica. 

 (Magnified 154 diameters) 



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r 



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 1 







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Fig. 7 Ore at the Hendricks mine, with crystals of pyrite in a chloritic aggregate. 



(9/10 natural size) 



