The grounded clay sample was mixed with 1 M Zinc chloride (ZnCl2) in 1000 mL beaker, for a period of 2 hours, and at 25 ± 2 o C (room temperature) using salt-clay ratio (4:1) w/w and stirred continuously . At the end of leaching process, the resulting residues was then filtered to separate undissolved materials. The residue was washed thoroughly with excess deionized water in order to remove excess acid, and the final product was dried in an electric Oven at 45 o C.