AM_Pb3Ga2Ge4O14 Formula: Pb3 Ga1.999 Ge4.001 O14 Name: Pb3Ga2Ge4O14 Unit cell: 8.417 8.417 5.014 90.0 90.0 120.0 , V=307.63 Space group: P321 (150)

Belokoneva E L , Stefanovich S Y , Pisarevskii Y V , Mosunov A V , Russian Journal of Inorganic Chemistry , 45 (2000) p.1642-1651, Refined structures of La3Ga5SiO14 and Pb3Ga2Ge4O14 and the crystal-chemical regularities, in the structure and properties of compounds of the langasite family