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The Cobalt area is not unique in Ontario in possessing 

 an unusual ore, other representative economic minerals 

 of the Province when discovered being without a market or 

 requiring the development of a refining process. The 

 Sudbury deposits, for example, were opened up for copper, 

 nickel being afterwards found to be present. A consider- 

 able period elapsed before refineries were developed and a 



M 



Part of a map published in 1744, showing that the argentiferous 

 galena deposit on the east side of lake Temiskaming (Ance 

 a. la mine), about nine miles from Cobalt, was known at that 

 date. 



market made for the nickel by proving to the nations of 

 the world its value as a constituent of steel for armour 

 plate. Again, in the earlier years of apatite mining in 

 Ontario, the amber mica, which is now so highly prized, 

 associated with this mineral, was thrown on the waste heaps. 

 And when the corundum deposits were discovered, a process 



