AM_Natrophilite
Formula: Na (Mn.93 Fe.07) P O4
Name: Natrophilite
Unit cell: 10.523 4.987 6.312 90.0 90.0 90.0 , V=331.24
Space group: PNAM (62)

Moore P B , American Mineralogist , 57 (1972) p.1333-1344, Natrophilite, NaMn(PO4), has ordered cations