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The XRD pattern of Seladengay, Mehal Meda and Zemero natural clay before and after activation with 25% H2SO4 (AZC: Zemero Clay after activation; BZC: Zemero Clay before activation; AMC: Mahel Meda Clay after activation; BMC: Mahel Meda Clay before activation; ASC: Seladengay Clay after activation; BSC: Seladengay Clay before activation).
