Jarosite is used to extract lithium from aqueous solutions. Given the inherent magnetic properties of Jarosite coupled with Li adsorption capacity, we envision a simpler and economical way to extract Li from aqueous environments. Jarosite is a generic term for an isostructural family of compounds of form AM3(OH)6(SO4)2, (where A+= Na, K, Rb, NH4, H3O, Ag, T and M3+= Fe, Cr, V), in particular has demonstrated reasonable properties for Li-ion batteries and unique lithium inclusion behaviors. Often the product of acid mine drainage and acid sulfate soil environments, jarosite is mostly restricted to surficial, acidified environment. The crystal structure consists of octahedral sheets decorated by sulfate tetrahedra with the cations residing between the octahedral - tetrahedral layers. Bridging hydroxyls connect adjacent metal octahedra. Interestingly, in the octahedral sheets the M3+ions occupy nodes of a triangular lattice with specific magnetic properties. We synthesized and characterized ammonia jarosite with a chemical formula of (NH4)Fe3(SO4)2(OH)6.Based on the ICP-OES data, the Jarosite material adsorbs ~30 mg of Li per gram of Jarosite after magnetic isolation in an aqueous environment at pH 10.