Georgbarsanovite Ekimenkova I A, Rastsvetaeva R K, Khomyakov A P Doklady Chemistry 370 (2000) 17-20 Crystal structure of the Fe,Cl-analogue of kentbrooksite Locality: Petrelius peak, Khibiny massif, Kola Peninsula, Russia _database_code_amcsd 0012503 14.262 14.262 29.949 90 90 120 R3m atom x y z occ Biso Na1 .2090 .1045 .2855 3.5 Na2a .1057 .2114 .1562 .53 1.7 Na2b .126 .252 .146 .10 2.8 Na2c .077 .154 .1738 .37 2.3 Na3a .5696 .1392 .1730 .57 1.8 Na3b .5548 .1096 .1815 .43 1.9 Na4a .497 .782 .170 .11 7 Na4b .4768 .7384 .1863 .78 4.1 Ca .4054 .3315 .3323 .77 Zr .3270 .1635 .1667 .75 Fe .0108 .5054 -.0002 .23 1.9 NbM1 1/3 2/3 .2958 .8 1.5 SiM1 1/3 2/3 .2958 .2 1.5 Fe2+M2 .1819 .3638 .3289 .62 1.6 MnM2 .1819 .3638 .3289 .04 1.6 ZrM2 .1819 .3638 .3289 .09 1.6 TiM2 .1819 .3638 .3289 .02 1.6 KM3 .4666 .2333 .0467 .083 1.7 SrM3 .4666 .2333 .0467 .239 1.7 BaM3 .4666 .2333 .0467 .011 1.7 YM3 .4666 .2333 .0467 .044 1.7 MnM3 .4666 .2333 .0467 .356 1.7 CaM3 .4666 .2333 .0467 .111 1.7 CeM3 .4666 .2333 .0467 .156 1.7 Si1 .6095 .6042 .0973 .58 Si2 .1402 .0701 .0807 .76 Si3 .2688 .3260 .2373 .54 Si4 .2102 .4204 .0743 .66 Si5 .5266 .2633 .2505 .57 Si6 .4595 .5405 .2565 .77 Si7 1/3 2/3 .0873 1.4 O1 .2084 .6042 .2513 2.1 O2 .3988 .2975 .1266 1.9 O3 .6272 .0380 .0455 1.0 O4 .0468 .3012 .2899 .9 O5 .1067 .3885 .1067 2.0 O6 .5721 .6099 .2269 1.3 O7 .2539 .2251 .2078 1.4 O8 .4414 .2207 .2908 1.6 O9 .1807 .3614 .2203 1.0 O10 .1796 .0898 .1324 1.5 O11 .1778 .3556 .0290 1.1 O12 .6055 .3948 .2531 1.0 O13 .2328 .1164 .0448 1.5 O14 .4827 .5172 .3064 1.1 O15 .0118 .5059 .1160 1.0 O16 .0616 .1232 .0734 1.1 O17 .2743 .5486 .0662 3.2 O18 .4710 .2355 .2025 1.4 OH1 1/3 2/3 .1426 2.1 OH2 .6030 .2060 -.0014 3.0 OH3 .413 .586 .002 .23 9 Clla .618 .383 .0967 .10 3.0 Cllb 2/3 1/3 .0991 .80 2.4 Cl2 0 0 .2449 .20 1.2 Wat 0 0 .2551 .80 1.7