AM_Na2(Mn526Na074)Ge6O20 Formula: Na2.74 Mn5.26 Ge6 O20 Name: Na2(Mn5.26Na0.74)Ge6O20 Unit cell: 10.5578 11.1532 9.1833 106.707 95.809 124.367 , V=806.04 Space group: P-1 (2)

Redhammer G J , Roth G , Topa D , Amthauer G , Acta Crystallographica, Section C , 64 (2008) p.i21-i26, Synthetic aenigmatite analog Na2(Mn5.26Na0.74)Ge6O20: structure and, crystal chemical considerations, Locality: synthetic, T = 295 K