Zeolite Granule are microporous, aluminosilicate minerals commonly used as commercial adsorbents and catalysts.[1] They are tetrahedral, three dimensional, crystalline minerals of aluminosilicate earth metals and belong to the acidic catalysts.[2] The term zeolite was originally coined in 1756 by Swedish mineralogist Axel Fredrik Cronstedt, who observed that rapidly heating a material, believed to have been stilbite, produced large amounts of steam from water that had been adsorbed by the material. Based on this, he called the material zeolite, from the Greek , meaning "to boil" and (l­thos), meaning "stone".[3]