Cr2 Na3 O12 P3 Lucazeau G, Barj M, Soubeyroux J, Dianoux A, Delmas C Solid State Ionics 1819 (1986) 959-963 Neutron scattering and diffraction study of Na3 Cr2 P3 O12, Na Zr2 P3 O12 and Na3 Zr Mg P3 O12 _cod_database_code 1008846 _database_code_amcsd 0016712 8.6476 8.6476 21.6169 90 90 120 R-3c atom x y z occ Cr1 0 0 .1465 P1 .2911 0 .25 O1 .1746 -.0306 .1934 O2 .1925 .1675 .0899 Na1 0 0 0 .79 Na2 .6315 0 .25 .73