Tetradymite
      Harker D
      Zeitschrift fur Kristallographie 89 (1934) 175-181
      The crystal structure of the mineral tetradymite, Bi2Te2S
      Locality: Hungary
      _database_code_amcsd 0010544

      CELL PARAMETERS:   10.3300  10.3300  10.3300   24.170   24.170   24.170
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    162.410
      Density (g/cm3):      7.209
      MAX. ABS. INTENSITY / VOLUME**2:      375.8664753    
      RIR:     16.976
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 8.82          3.20       10.0236    1   1   1         2
                17.70         13.81        5.0118    2   2   2         2
                23.94         17.11        3.7172    1   0   0         6
                24.49          3.23        3.6348    1   1   0         6
                26.59          9.78        3.3528    2   1   1         6
                26.68          2.18        3.3412    3   3   3         2
                28.06        100.00        3.1796    2   2   1         6
                31.69          8.59        2.8233    3   2   2         6
                33.78          6.63        2.6533    3   3   2         6
                41.77         35.02        2.1627    0  -1   1         6
                45.69          3.41        1.9857    3   1   2         6
                45.69          3.41        1.9857    3   2   1         6
                48.71          2.38        1.8693    1  -1   1         6
                50.20          1.62        1.8174    2   2   0         6
                51.07         16.80        1.7883    3   1   1         6
                53.36          1.78        1.7169    3   3   1         6
                68.03          6.26        1.3782    3   0   2         6
                68.03          6.26        1.3782    3   2   0         6
                76.25          4.64        1.2486    1  -2   1         6
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       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.