A novel carbon mineral sequestration process developed by Park and Fan immobilized carbon dioxide into thermodynamically stable solid matrix of magnesium carbonate using serpentine, hydrous magnesium silicate mineral. Serpentine generally contains approximately 5 wt% of Fe. Thus, during this process, two other solid products are also generated: high surface area silica and iron oxide particles. By carefully controlling the pH of the system, these solids product can be produced with high purity. In order to ensure the economic feasibility as well as the environmental impact of the carbon mineral sequestration process, the development of various industrial pathways that may utilize these solid products, including iron oxide, is proposed. One of the potential applications of the iron-bearing solid product is the enhanced hydrogen production via the chemical looping process that produces hydrogen either directly from coal or syngas, while producing sequestration-ready CO2 stream. Iron oxide is one of key ingredients of chemical looping sorbent. In this study, the optimum characteristics of the solvent extracting iron from serpentine and the subsequent precipitation process of iron oxide that will benefit the chemical looping process are investigated. The prepared chemical looping sorbents are characterized and tested for the hydrogen production capability and recycleabiltiy.