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 = 173 K
_database_code_amcsd 0008634
11.299 3.828 11.214 90 90 90 Pnma
atom      x   y      z Biso
Sb1  .47064 .25 .32581 .725
Sb2  .35058 .75 .03553 .946
S1    .2923 .25  .1916  .76
S2    .5497 .75  .1228  .74
S3    .3748 .75  .4388  .74