Citation: Gramaccioli, C. M.; Liborio, G.; Pilati, T. (1981). Structure of medaite, Mn6[VSi5O18(OH)]: The presence of a new kind of heteropolysilicate anion Note: anisoB's from ICSD. Acta Crystallographica, Section B, 37, pp. 1972-1978.
Formula: As0.185 Ca0.192 Fe0.348 H Mn5.772 O19 Si5 V0.815