Pieczkaite Engel G, Pretzsch J, Gramlich V, Baur W H Acta Crystallographica B31 (1975) 1854-1860 The crystal structure of hydrothermally grown manganese chlorapatite, Mn5(PO4)3Cl0.9(OH)0.1 Locality: synthetic _database_code_amcsd 0020231 9.532 9.532 6.199 90 90 120 P6_3/m atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Mn1 1/3 2/3 .00672 .0118 .0118 .0076 .0059 0 0 Mn2 .27763 .03415 .25 .0128 .0102 .0096 .0051 0 0 P .40676 .38085 .25 .0075 .0072 .0079 .0042 0 0 O1 .36003 .51276 .25 .0131 .0105 .0109 .0084 0 0 O2 .59621 .45779 .25 .0080 .0100 .0137 .0044 0 0 O3 .34343 .26841 .05128 .0151 .0104 .0096 .0069 -.0028 -.0022 Cl 0 0 .25 .9 .0116 .0116 .0255 .0058 0 0 OH 0 0 .25 .1 .0116 .0116 .0255 .0058 0 0