Clausthalite
Ramsdell L S
American Mineralogist 10 (1925) 281-304
The crystal structures of some metallic sulfides
Locality: synthetic
_database_code_amcsd 0000004
6.14 6.14 6.14 90 90 90 Fm3m
atom  x  y  z
Pb    0  0  0
Se   .5 .5 .5