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NONCONTROLLING INTEREST (Tables)
9 Months Ended
Sep. 30, 2012
Change from net income and transfers from noncontrolling interest
The following table sets forth the effects of these transactions on equity attributable to AMCOL's shareholders:

   
Nine Months Ended September 30,
 
   
2012
  
2011
 
Net income attributable to AMCOL shareholders
 $53.6  $46.6 
Transfers from noncontrolling interest:
        
Decrease in additional paid-in capital for purchase of the remaining noncontrolling interest in  Volclay South Africa (Proprietary) Limited
  -   (5.4)
Decrease in additional paid-in capital for transfer of 26% interest in Batlhako
  -   (3.4)
          
Change from net income attributable to AMCOL shareholders and transfers from noncontrolling interest
 $53.6  $37.8