AM_Mn2GeO4-delta Formula: Mn2 Ge O4 Name: Mn2GeO4-delta Unit cell: 5.262 9.274 2.954 90.0 90.0 90.0 , V=144.15 Space group: PBAM (55)

Morimoto N , Tokonami M , Koto K , Nakajima S , American Mineralogist , 57 (1972) p.62-75, Crystal structures of the high pressure polymorphs of Mn2GeO4