~8× water in fines
Water is concentrated in the outermost grain rims; the finest fraction of lunar regolith holds far more water than bulk or coarse fractions, offering a new pathway for water extraction at future lunar stations.
Lin, Honglei · Xu, Rui · Li, Shuai · Chang, Rui · Hui, Hejiu · Liu, Yang · Tian, Hengci · Fan, Kai · He, Zhiping · He, Huaiyu · Yang, Wei · Lin, Yangting · Wei, Yong
Science Bulletin 2024