Thadeuite Isaacs A M, Peacor D R American Mineralogist 67 (1982) 120-125 The crystal structure of thadeuite, Mg(Ca,Mn)(Mg,Fe,Mn)2(PO4)2(OH,F)2 _database_code_amcsd 0000859 6.412 13.563 8.545 90 90 90 C222_1 atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) P .1618 .3382 .0459 0.0025 0.0011 0.0024 0.0000 0.0003 0.0001 Mg1 0 .1460 .25 0.0011 0.0011 0.0016 0 0.0002 0 Mg2 .3541 .3840 .4043 .59 0.0028 0.0016 0.0028 0.0002 0.0001 0.0004 Fe2 .3541 .3840 .4043 .29 0.0028 0.0016 0.0028 0.0002 0.0001 0.0004 Mn2 .3541 .3840 .4043 .12 0.0028 0.0016 0.0028 0.0002 0.0001 0.0004 Mn3 .5 .0361 .25 .05 0.0040 0.0012 0.0040 0 0.0001 0 Ca3 .5 .0361 .25 .95 0.0040 0.0012 0.0040 0 0.0001 0 O1 .1199 .2281 .0687 0.0074 0.0013 0.0043 0.0002 0.0004 0.0001 O2 .3328 .3735 .1585 0.0034 0.0026 0.0041 -.0004 -.0008 -.0006 O3 .2733 .1431 .3764 0.0056 0.0022 0.0028 0.0000 -.0018 -.0008 O4 .0347 .3996 .4224 0.0050 0.0016 0.0038 -.0003 0.0002 0.0004 OH .1489 .0385 .1322 0.0063 0.0015 0.0031 0.0005 0.0003 0.0005