Process for producing an aggregate

A proppant processing assembly comprising:

• a separator assembly having a central member extending from a first end to a second end, the central member supporting at least one helical flight provided between the first and second ends, the helical flight having a width provided between a proximal end and a distal end;
• an assembly housing provided around a portion of the separator assembly, the assembly housing includes a collection portion for receiving a first fraction of processed feed stock which exits the separator assembly radially away from the central member outward past the distal end, the collection portion includes a first outlet;
• a second outlet coupled to the separator assembly for receiving a second fraction of processed feed stock which exits the separator assembly at the second end of the at least one helical flight;
• and
• a fraction acquisition assembly being selected from the group consisting of:
• a radial slot provided in a portion of the at least one helical flight;
• a radial rim provided on the distal end of the at least a portion of one helical flight;
• a splitter assembly provided along the radius of the at least one helical flight;
• and
• a collection assembly formed by a first collection member coupled to the central member at a first end, and a second collection member coupled to the first collection member at a second end, the second collection member being perpendicular to the first collection member, and the first collection member being approximately parallel to the at least one helical flight and having a second width which is greater than the width of the at least one helical flight.