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The present research contribution is pertaining to the surface modification of natural pumice (NP) using aqueous solution of magnesium chloride (MgCl₂) and hydrogen peroxide (H₂O₂) and exploring the fluoride uptake capacity between the natural and modified pumice materials. The effect due to hydrogen peroxide, an oxidant, towards modification of pumice surface was greater than the magnesium chloride solution and showed a substantial increase in the specific surface area of 53.11 m² g⁻¹ and 41.63 m² g⁻¹ respectively for hydrogen peroxide modified pumice (HMP) and magnesium chloride modified pumice (MGMP) as compared to that of NP of 2.34 m² g⁻¹. The extent of surface modification with enhanced porosity in MGMP and HMP was apparent from the recorded SEM patterns. XRD and FTIR studies of surface modified pumice did not show any structural distortion. In this contribution, the fluoride …