AM_Whitlockite_3 Formula: Ca9.06 (Mg.921 Fe.079) P7 O28 H.87 Name: Whitlockite Unit cell: 10.3571 10.3571 37.138 90.0 90.0 120.0 , V=3450.05 Space group: R3C (161)

Hughes J M , Jolliff B L , Rakovan J , American Mineralogist , 93 (2008) p.1300-1305, The crystal chemistry of whitlockite and merrillite and the, dehydrogenation of whitlockite to merrillite, Locality: synthetic, Note: Standard temperature and pressure