Stibnite
Kyono A, Kimata M, Matsuhisa M, Miyashita Y, Okamoto K
Physics and Chemistry of Minerals 29 (2002) 254-260
Low-temperature crystal structures of stibnite implying orbital
overlap of Sb 5s2 inert pair electrons
Sample: T = 293 K
_database_code_amcsd 0008636
11.314 3.837 11.234 90 90 90 Pnma
atom      x   y      z Biso
Sb1  .47058 .25 .32598 1.26
Sb2  .35058 .75 .03598 1.57
S1    .2922 .25  .1919 1.21
S2    .5498 .75  .1230 1.22
S3    .3751 .75  .4388 1.24