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 = 128 K
_database_code_amcsd 0008633
11.292 3.828 11.205 90 90 90 Pnma
atom      x   y      z Biso
Sb1  .47071 .25 .32575 .565
Sb2  .35057 .75 .03533 .731
S1    .2923 .25  .1914  .62
S2    .5497 .75  .1226  .59
S3    .3748 .75  .4387  .60