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Non-Tech : The Brazil Board
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From: elmatador9/8/2010 12:21:20 AM
   of 2504
 
Carajas dwarfed by Mato Grosso discovery, its ore content was of a higher grade -- at least 67 percent. Estimates of the Mato Grosso deposits are based on scientific surveys of about 26 square miles of land near the border with Bolivia.

...

the discovery in Mato Grosso consisted of potential recoverable deposits of an estimated 11.5 billion tons of iron ore of 41 percent grade plus about 430 million tons of phosphates.

He said those estimates of the deposits make the new discoveries larger than the Carajas iron ore mine in the northern Para state. Iron ore deposits in the Para mine have been variously estimated at 3 billion-7 billion tons -- the higher estimate cited by the controlling company, Vale. The more conservative estimate was recorded by the national mining department before it was revised by Vale, a diversified mining multinational corporation quoted on the New York Stock Exchange.

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