Tetradymite
Pauling L
American Mineralogist 60 (1975) 994-997
The formula, structure, and chemical bonding of tetradymite, Bi14Te13S8, and the
Phase Bi14Te15S6
cell parameters were computed from those provided in the rhombohedral setting
_database_code_amcsd 0000474
10.70 10.70 28.17 90 90 120 R-3
atom    x    y      z
Te1     0    0      0
Te2  .220 .044  .1115
Te3  .407 .504  .1169
S1    1/3  2/3 -.1007
S2   .441 .301  .0020
Bi1   1/3  2/3  .0520
Bi2  .215 .268  .0557
Bi3  .464 .097  .0527