Tetradymite
      Lange P W
      Naturwissenschaften 27 (1939) 133-134
      Ein Vergleich zwischen Bi2Te3 und Bi2Te2S
      _database_code_amcsd 0014689

      CELL PARAMETERS:   10.3100  10.3100  10.3100   24.170   24.170   24.170
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    161.469
      Density (g/cm3):      7.251
      MAX. ABS. INTENSITY / VOLUME**2:      378.2608974    
      RIR:     16.985
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 8.84          3.21       10.0042    1   1   1         2
                17.73         13.82        5.0021    2   2   2         2
                23.99         17.11        3.7100    1   0   0         6
                24.54          3.23        3.6278    1   1   0         6
                26.64          9.78        3.3463    2   1   1         6
                26.73          2.18        3.3347    3   3   3         2
                28.12        100.00        3.1735    2   2   1         6
                31.76          8.59        2.8178    3   2   2         6
                33.85          6.63        2.6482    3   3   2         6
                41.85         34.98        2.1585    0  -1   1         6
                45.78          6.81        1.9819    3   2   1        12
                48.81          2.38        1.8657    1  -1   1         6
                50.30          1.62        1.8139    2   2   0         6
                51.18         16.77        1.7848    3   1   1         6
                53.47          1.78        1.7136    3   3   1         6
                66.21          1.67        1.4115    0  -1   2        12
                67.44          1.17        1.3887    3   1   0        12
                68.18         12.49        1.3755    3   2   0        12
                76.43          4.63        1.2462    1  -2   1         6
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.