Citation: Szymanski, J. T.; Owens, D. R.; Roberts, A. C.; Ansell, H. G.; Chao, G. Y. (1982). A mineralogical study and crystal-structure determination of nonmetamict ekanite, ThCa2Si8O20 Note: Changed O2-x coordinate to match reported bond lengths. The Canadian Mineralogist, 20, pp. 65-75.