AM_Rhodonite Formula: Mn3.54 Mg.86 Ca.6 Si5 O15 Name: Rhodonite Unit cell: 9.797 10.497 12.185 108.55 103.02 82.49 , V=1155.08 Space group: C-1 (2)

Peacor D R , Essene E J , Brown P E , Winter G A , American Mineralogist , 63 (1978) p.1137-1142, The crystal chemistry and petrogenesis of a magnesian rhodonite