Melanite Quartieri S, Boscherini F, Chaboy J, Dalconi M C, Oberti R, Zanetti A Physics and Chemistry of Minerals 29 (2002) 495-502 Characterization of trace Nd and Ce site preference and coordination in natural melanites: a combined X-ray diffraction and high-energy XAFS study Sample: 89/35 _database_code_amcsd 0008660 12.071 12.071 12.071 90 90 90 Ia-3d atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) CaX 1/8 0 .25 .9910 .56 .0006 .0011 .0011 0 0 .0000 NaX 1/8 0 .25 .0060 .56 .0006 .0011 .0011 0 0 .0000 ZrX 1/8 0 .25 .0053 .56 .0006 .0011 .0011 0 0 .0000 VX 1/8 0 .25 .0080 .56 .0006 .0011 .0011 0 0 .0000 AlY 0 0 0 .1300 .39 .0007 .0007 .0007 0 0 0 FeY 0 0 0 .7190 .39 .0007 .0007 .0007 0 0 0 MnY 0 0 0 .0155 .39 .0007 .0007 .0007 0 0 0 MgY 0 0 0 .0445 .39 .0007 .0007 .0007 0 0 0 SiZ 3/8 0 .25 .8857 .42 .0007 .0007 .0007 0 0 0 TiZ 3/8 0 .25 .1647 .42 .0007 .0007 .0007 0 0 0 O .0389 .0485 .6540 .77 .0016 .0014 .0010 -.0002 .0001 .0000