Potassic-ferro-ferri-sadanagaite Sokolova E V, Hawthorne F C, Kabalov Y K, Schneider J, McCammon C A The Canadian Mineralogist 38 (2000) 669-674 The crystal chemistry of potassic-ferrisadanagaite Locality: contact zone of the Ilmen alkaline massif, Ilmen Mountains, southern Urals, Russia _database_code_amcsd 0005653 9.9309 18.0949 5.3681 90 105.19 90 C2/m atom x y z occ Biso KA 0 .5 0 .66 5.5 NaA 0 .5 0 .32 5.5 Ca4 0 .283 .5 .865 .1 Mn4 0 .283 .5 .02 .1 Na4 0 .283 .5 .115 .1 Fe1 0 .091 .5 .65 .1 Ti1 0 .091 .5 .095 .1 Fe2 0 .180 0 .61 .2 Mg1 0 .091 .5 .255 .1 Al2 0 .180 0 .39 .2 Fe3 0 0 0 .70 .2 Mn3 0 0 0 .21 .2 Mg3 0 0 0 .09 .2 Si1 .2813 .087 .3117 .73 .8 Al1 .2813 .087 .3117 .27 .8 Si2 .2897 .174 .8144 .93 .7 Al2 .2897 .174 .8144 .07 .7 O1 .1035 .093 .2108 .2 O2 .1184 .176 .7380 .7 O3 .1034 0 .7038 .9 O4 .3708 .250 .7939 .1 O5 .3500 .140 .1161 1.1 O6 .3414 .118 .6109 .4 O7 .3404 0 .2940 .6