AM_Merrillite_1 Formula: Ca9.443 (Mg.935 Fe.065) P6.964 O28 Name: Merrillite Unit cell: 10.3499 10.3499 37.115 90.0 90.0 120.0 , V=3443.12 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: Formed through dehydrogenation of synthetic whitlockite, by heating at 1050 degrees C for 24 hours