Citation: Bowman, Michael G.; Downs, Robert T.; Yang, Hexiong (2013). Penikisite, BaMg~2~Al~2~(PO~4~)~3~(OH)~3~, isostructural with bjarebyite. Acta Crystallographica Section E, 69, pp. i4-i5.
Formula: Al2 Ba H3 Mg1.97 Mn0.03 O15 P3
Chemical name:Barium dimagnesium dialuminium triphosphate trihydroxide