Citation: Nagashima, M.; Armbruster, T.; Kolitsch, U.; Pettke, T. (2014). The relation between Li <-> Na substitution and hydrogen bonding in five-periodic single-chain silicates nambulite and marsturite: A single-crystal X-ray study. American Mineralogist, 99, pp. 1462-1470.
Formula: Ca0.212 H Li0.276 Mg0.22 Mn3.568 Na0.724 O15 Si5