AM_Melilite_2 Formula: Zn Ge2 Ca2.087 O7 Name: Melilite Unit cell: 8.02 7.995 15.506 90.0 89.47 90.0 , V=994.20 Space group: P1211 (4)

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, low-temperature polymorph, Ca2ZnGe2O7