AM_Rhodonite_15 Formula: Mn3 Zn Ca Si5 O15 Name: Rhodonite Unit cell: 9.8719 10.5262 12.2214 108.743 103.728 82.049 , V=1165.60 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: 15-4040, Note: see samples 15-4029 and 15-4024 for plausible typical fowlerite, and rhodonite cation distributions