Effenbergerite
      Knight K S, Henderson C M B
      European Journal of Mineralogy 19 (2007) 189-200
      Structural basis for the anomalous low-temperature thermal expansion
      behavior of the gillespite-structured phase Ba0.5Sr0.5CuSi4O10
      Sample: T = 300 K
      _database_code_amcsd 0007206

      CELL PARAMETERS:    7.3942   7.3942  15.8621   90.000   90.000   90.000
      SPACE GROUP: P4/ncc    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    867.259
      Density (g/cm3):      3.433
      MAX. ABS. INTENSITY / VOLUME**2:      21.15914211    
      RIR:      2.007
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                11.16         44.23        7.9310    0   0   2         2
                16.39          7.37        5.4083    1   0   2         8
                16.96          4.34        5.2285    1   1   0         4
                20.34         38.81        4.3653    1   1   2         8
                22.42         14.71        3.9655    0   0   4         2
                25.49         32.13        3.4947    1   0   4         8
                26.60        100.00        3.3509    2   0   2         8
                27.55         10.71        3.2372    2   1   1        16
                28.24         63.62        3.1596    1   1   4         8
                29.26         42.68        3.0521    2   1   2        16
                33.13         27.03        2.7042    2   0   4         8
                33.91          2.36        2.6437    0   0   6         2
                34.30         31.40        2.6143    2   2   0         4
                36.18          8.38        2.4829    2   2   2         8
                38.15         24.96        2.3592    1   1   6         8
                38.24          4.74        2.3537    3   0   2         8
                38.50          3.59        2.3383    3   1   0         8
                38.93          1.10        2.3133    3   1   1        16
                40.21         10.32        2.2428    3   1   2        16
                41.37          3.12        2.1826    2   2   4         8
                43.84          3.29        2.0649    2   1   6        16
                44.55          2.37        2.0339    3   2   1        16
                45.01         15.42        2.0142    3   1   4        16
                45.76          3.52        1.9828    0   0   8         2
                47.47          5.40        1.9151    1   0   8         8
                48.36          1.15        1.8822    3   1   5        16
                49.00          2.58        1.8589    2   2   6         8
                49.14          3.77        1.8539    1   1   8         8
                49.30         11.23        1.8486    4   0   0         4
                50.07          5.26        1.8216    3   2   4        16
                50.71          2.13        1.8003    4   0   2         8
                51.27          1.70        1.7820    4   1   1        16
                52.23         12.09        1.7515    3   1   6        16
                53.86          1.35        1.7022    3   3   2         8
                55.58          3.30        1.6534    4   2   0         8
                56.30          1.55        1.6340    4   1   4        16
                56.89          7.64        1.6186    4   2   2        16
                57.79          4.46        1.5955    3   3   4         8
                58.42          1.26        1.5798    2   2   8         8
                60.68          1.11        1.5261    4   2   4        16
                61.18          1.23        1.5149    4   0   6         8
                61.30          2.37        1.5123    3   1   8        16
                63.86          6.10        1.4577    2   0  10         8
                63.98          1.48        1.4551    3   3   6         8
                64.05          1.33        1.4538    4   3   2        16
                65.43          1.01        1.4265    5   1   2        16
                65.48          2.74        1.4255    3   2   8        16
                66.91          1.34        1.3985    5   1   3        16
                68.95          2.67        1.3619    5   1   4        16
                69.47          2.26        1.3530    5   2   2        16
                69.52          1.16        1.3521    4   0   8         8
                74.65          1.30        1.2714    5   1   6        16
                84.68          1.35        1.1446    4   2  10        16
                84.79          1.16        1.1434    5   3   6        16
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.