Exhibit 32

                   Certification of Periodic Financial Report

                       Pursuant to 18 U.S.C. Section 1350

Pursuant to 18 U.S.C.  Section 1350,  as adopted  pursuant to Section 906 of the
Sarbanes-Oxley  Act  of  2002,  each  of  the  undersigned   officers  of  AMCOL
International Corporation (the "Company") certifies that the quarterly report on
Form 10-Q of the Company for the six months  ended June 30, 2004 fully  complies
with the  requirements of Section 13(a) or 15(d) of the Securities  Exchange Act
of 1934 and  information  contained  in that Form 10-Q fairly  presents,  in all
material  respects,  the  financial  condition  and results of operations of the
Company.

Date:  August 6, 2004

                                         --------------------------------------
                                         Lawrence E. Washow
                                         Chief Executive Officer



Date:  August 6, 2004

                                         --------------------------------------
                                         Gary L. Castagna
                                         Chief Financial Officer