AM_Rhodonite_14 Formula: Mn4.292 Fe.4 Ca.3 Mg.1 Zn.005 Si5 O15 Name: Rhodonite Unit cell: 9.8793 10.5298 12.2257 108.744 103.752 82.03 , V=1167.14 Space group: C-1 (2)

Nelson W R , Griffen D T , American Mineralogist , 90 (2005) p.969-983, Crystal chemistry of Zn-rich rhodonite ( fowlerite ), Sample: 15-4029, Note: this is a plausible typical cation distribution for rhodonite