Citation: Grew, E. S.; Halenius, U.; Pasero, M. (2008). The crystal-chemistry of aenigmatite revisited: electron microprobe data, structure refinement and Mossbauer spectroscopy of aenigmatite from Vesteroya (Norway). European Journal of Mineralogy, 20, pp. 983-991.
Formula: Ca0.129 Fe4.759 Mg0.327 Na1.871 O20 Si5.914 Ti