As3 Sn4
Haegg G, Hybinette A
Philosophical Magazine 20 (1935) 913-929
X-ray studies on the systems tin-antimony and tin-arsenic
_cod_database_code 1010003
_database_code_amcsd 0016939
12.23 12.23 12.23 19.22 19.22 19.22 R-3m
atom     x     y     z
As1      0     0     0
Sn1  .1429 .1429 .1429
Sn2  .2857 .2857 .2857
As2  .4286 .4286 .4286