AM_Melilite_1 Formula: Ca2 Zn Ge2 O7 Name: Melilite Unit cell: 7.95 7.95 5.186 90.0 90.0 90.0 , V=327.77 Space group: P-421M (113)

Armbruster T , Rothlisberger F , Seifert F , American Mineralogist , 75 (1990) p.847-858, Layer topology, stacking variation and site distortion in melilite-related, compounds in the system CaO-ZnO-GeO2-SiO2, high-temperature polymorph, Ca2ZnGe2O7