Barberiite
Clark M J R, Lynton H
Canadian Journal of Chemistry 47 (1969) 2579-2586
Crystal structures of potassium, ammonium, rubidium and cesium
tetrafluoroborates
Locality: synthetic
_database_code_amcsd 0012155
7.278 9.072 5.678 90 90 90 Pbnm
atom      x       y      z B(1,1) B(2,2) B(3,3)  B(1,2)  B(1,3)  B(2,3)
NH4  .16420  .18539    .25 .01000 .00586 .02083 -.00048 -.00108 -.00015
B    .69207  .06051    .25 .00689 .00533 .01286 -.00045  .00275 -.00118
F1   .61017 -.07653    .25 .02616 .00961 .04406 -.01015  .00249 -.00034
F2   .56426  .17280    .25 .01227 .01261 .03382  .00602 -.00155 -.00083
F3   .80393  .07559 .04994 .01448 .01006 .01595  .00124  .00377  .00021