AM_Alluaudite_6
Formula: Na1.56 Mn1.538 Fe1.5 P3 O12
Name: Alluaudite
Unit cell: 11.995 12.596 6.495 90.0 114.6 90.0 , V=892.25
Space group: C12/C1 (15)

Hatert F , Rebbouh L , Hermann R P , Fransolet A M , Long G J , Grandjean F , American Mineralogist , 90 (2005) p.653-662, Crystal chemistry of the hydrothermally synthesized, Na2(Mn1-xFe2+x)2Fe3+(PO4)3 alluaudite-type solid solution, Sample: Na2Mn1.5Fe2+0.5Fe3+(PO4)3 (x = 0.25)