AM_Herderite_2 Formula: Ca Be P O4 F Name: Herderite Unit cell: 9.8 7.68 4.8 90.0 90.1 90.0 , V=361.27 Space group: P121/A1 (14)

Pavlov P V , Belov N V , Soviet Physics Crystallography , 4 (1959) p.300-314, The structures of herderite, datolite and gadolinite determined by direct, methods, Locality: not given, but the crystal was natural