23 pages matching copper was produced in this book
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3-compartment shaft adit andesite average grade B.C. Dept bornite British Columbia Canada Memoir Canadian National Railway chalcocite chalcopyrite claims Company of Canada concentrates tons concession Consolidated Mining containing copper content copper mineral copper was produced copper-nickel copper-zinc crosscuts Cu-Zn deposit consists depth Depto of Mines disseminated estimate of reserves estimated reserves feet deep feet of drifting feet wide Flin Flon Geol Gold ounces International Nickel Company Island Lake lenses lodes Manitoba matte Merrill Island mill mineralized zone Mines Limited Mining and Smelting Mining Division Newfoundland Noranda Mines Ontario operated orebody Parry Sound District pounds of copper production property comprises pyrite pyrrhotite quartz Quebec Refs Ont Report Rouyn-Noranda schist shaft extends shaft was sunk sheared zone shipped Silver ounces smelter Smelting Company sphalerite surface Survey Nfld Survey of Canada Tilt Cove tons averaging tons grading township vertical shaft Waite Amulet width zinc