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 = 225 K
_database_code_amcsd 0008635
11.305 3.836 11.223 90 90 90 Pnma
atom      x   y      z  Biso
Sb1  .47062 .25 .32590  .903
Sb2  .35053 .75 .03570 1.159
S1   .29213 .25  .1918   .90
S2   .54985 .75  .1230   .90
S3    .3749 .75  .4387   .90