Shandite
Peacock M A, McAndrew J
American Mineralogist 35 (1950) 425-439
On parkerite and shandite and the crystal structure of Ni3Pb2S2
_database_code_amcsd 0000051
5.576 5.576 5.576 60 60 60 R-3m
atom    x    y    z
Pb1     0    0    0
Pb2    .5   .5   .5
Ni     .5    0    0
S    .285 .285 .285