Gudmundite
Buerger M J
American Mineralogist 24 (1939) 183-184
The crystal structure of gudmundite
_database_code_amcsd 0000021
10.00 5.93 6.73 90 90. 90 B2_1/d
atom    x    y     z
Fe      0 .015  .300
Sb   .140 .131 -.008
S    .156 .145  .511