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: V19 _database_code_amcsd 0008659 12.127 12.127 12.127 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 .9640 .86 .0012 .0016 .0016 0 0 .0004 NaX 1/8 0 .25 .0133 .86 .0012 .0016 .0016 0 0 .0004 ZrX 1/8 0 .25 .0093 .86 .0012 .0016 .0016 0 0 .0004 VX 1/8 0 .25 .0020 .86 .0012 .0016 .0016 0 0 .0004 YX 1/8 0 .25 .0003 .86 .0012 .0016 .0016 0 0 .0004 CeX 1/8 0 .25 .0003 .86 .0012 .0016 .0016 0 0 .0004 NdX 1/8 0 .25 .0003 .86 .0012 .0016 .0016 0 0 .0004 AlY 0 0 0 .0980 .64 .0011 .0011 .0011 0 0 0 FeY 0 0 0 .6955 .64 .0011 .0011 .0011 0 0 0 MnY 0 0 0 .0120 .64 .0011 .0011 .0011 0 0 0 MgY 0 0 0 .0645 .64 .0011 .0011 .0011 0 0 0 SiZ 3/8 0 .25 .8217 .77 .0012 .0013 .0013 0 0 0 TiZ 3/8 0 .25 .2753 .77 .0012 .0013 .0013 0 0 0 O .0377 .0474 .6536 1.11 .0024 .0015 .0017 -.0003 .0004 -.0001