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         |  | This is a file from the  Wikimedia Commons. The description on its  description page there is shown below. | 
        
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       This picture shows the appearance of  yellowcake.
        
       
        
         |  | This image is a work of a  United States Department of Energy (or predecessor organization) employee, taken or made during the course of an employee's official duties. As a  work of the  U.S. federal government, the image is in the  public domain. 
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       This picture came from Argonne National Laboratory 
       
      
 
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