Labuntsovite-Fe Rastsvetaeva R K, Chukanov N V, Pekov I V, Shlyukova Z V, Khomyakov A P Crystallography Reports 43 (1998) 820-827 Structures of two potassium-rich labuntsovites in relation to the crystal chemistry of minerals of the labuntsovite-nenadkevichite family Sample: II _database_code_amcsd 0012359 14.33 13.83 7.79 90 117.1 90 C2/m atom x y z occ Biso NaAI .4068 .2665 .007 .5 3.9 NaAII .4190 0 .7022 .125 5.3 KAII .4190 0 .7022 .75 5.3 TiMI1 .25 .25 .5 .9 2.46 NbMI1 .25 .25 .5 .1 2.46 TiMI2 0 .2247 .5 .9 2.45 NbMI2 0 .2247 .5 .1 2.45 FeMII 0 0 .5 .0625 2.6 MnMII 0 0 .5 .0625 2.6 MgMII 0 0 .5 .025 2.6 Si1 .3225 .1107 .2520 1.65 Si2 .2080 .1094 .8017 1.60 O1 .0829 .1201 .6801 2.2 O2 .2743 .1824 .7376 1.9 O3 .2657 .1259 .3876 2.0 O4 .3667 0 .2769 2.1 O5 .2431 0 .7764 2.2 O6 .4209 .1803 .3026 2.2 O7 .2363 .1262 .0271 2.2 OH .1013 .2229 .3965 2.0 KAIII .0839 0 .3363 .65 2.24 BaAIII .0839 0 .3363 .2 2.24 WatAIII .0839 0 .3363 .15 2.24 Ow1 .5 .1425 0 10.3 Ow2 0 .1175 0 10.7 H1 .479 .119 .89 3 H2 .051 .131 .09 4