Nafertisite Ferraris G, Ivaldi G, Khomyakov A P, Soboleva S V, Belluso E, Pavese A European Journal of Mineralogy 8 (1996) 241-249 Nafertisite, a layer titanosilicate member of a polysomatic series including mica _database_code_amcsd 0006619 5.353 16.176 21.95 90 94.6 90 A2/m atom x y z occ Uiso Na1 1/2 0 0 .05 Na2 0 -.154 0 .5 .02 Na2' 0 -.279 0 .5 .02 Fe1 .242 .3994 -.2649 .8 .010 Fe2 .257 .8001 -.2453 .8 .016 Fe3 .258 0 -.2319 .8 .012 Ti -.036 0 -.0980 .005 Si1 .444 -.122 -.117 .073 Si2 .434 .312 -.133 .042 Si3 -.064 .408 -.136 .030 O1 .387 .301 -.206 .02 OH2 .390 1/2 -.223 .03 O3 .411 -.104 -.186 .01 O4 -.109 .404 -.207 .05 OH5 .104 .295 -.305 .02 O6 .075 1/2 -.328 .02 O7 .215 .362 -.109 .02 O8 .725 -.089 -.081 .01 O9 .247 .082 -.079 .06 O10 .455 .222 -.100 .01 O11 .752 .360 -.105 .05 O12 -.073 1/2 -.105 .03 O13 0 0 0 .00