Revision 3 1 Aluminum ion occupancy in the structure of synthetic saponites : effect on 2 crystallinity

Revision 3 1 Aluminum ion occupancy in the structure of synthetic saponites: effect on 2 crystallinity 3 4 Hongping He*, Tian Li, Qi Tao, Tianhu Chen, Dan Zhang, Jianxi Zhu, Peng 5 Yuan and Runliang Zhu 6 7 1 Key Laboratory of Mineralogy and Metallogeny, Guangzhou Institute of Geochemistry, 8 Chinese Academy of Sciences, 510640, China 9 2 University of Chinese Academy of Sciences, Beijing 100049, China 10 3 School of Natural Resources and Environment, Hefei University of Technology, Hefei 11 230009, China 12 13 * Corresponding author: 14 Dr. Hongping He 15