ThOSe
Wyckoff R W G
Crystal Structures 1 (1963) 294-296
Second edition. Interscience Publishers, New York, New York
Note: tetragonal PbFCl structure
_database_code_amcsd 0011865
4.038 4.038 7.03 90 90 90 P4/nmm
atom x  y   z
Th   0 .5 .18
O    0  0   0
Se   0 .5 .63