AM_Whitlockite_8 Formula: Ca9.083 (Mg.8 Fe.2) P7 O28 Name: Whitlockite Unit cell: 10.33 10.33 37.103 90.0 90.0 120.0 , V=3428.79 Space group: R3C (161)

Gopal R , Calvo C , Nature Physical Science , 237 (1972) p.30-32, Structural relationship of whitlockite and beta-Ca3(PO4)2, Locality: Palermo Quarry, Sample: Unheated, T = 293 K, hexagonal cell, Note: CaIIB1(z) changed