AM_Rhodonite_5
Formula: Mn5 Si5 O15
Name: Rhodonite
Unit cell: 9.8451 10.5389 12.2414 108.692 103.299 82.184 , V=1168.19
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: 15-4030, Note: see samples 15-4029 and 15-4024 for plausible typical fowlerite, and rhodonite cation distributions