Effenbergerite
      Knight K S, Henderson C M B, Clark S M
      European Journal of Mineralogy 22 (2010) 411-423
      Structural variations in the wesselsite-effenbergerite (Sr1-xBaxCuSi4O10)
      solid solution
      Locality: synthetic
      Sample: x = 1.000
      _database_code_amcsd 0018775

      CELL PARAMETERS:    7.4360   7.4360  16.1302   90.000   90.000   90.000
      SPACE GROUP: P4/ncc    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    891.910
      Density (g/cm3):      3.524
      MAX. ABS. INTENSITY / VOLUME**2:      24.41163245    
      RIR:      2.256
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                10.97         47.31        8.0651    0   0   2         2
                16.21          6.47        5.4669    1   0   2         8
                16.86          8.11        5.2581    1   1   0         4
                20.16         49.66        4.4047    1   1   2         8
                22.04          9.43        4.0325    0   0   4         2
                25.12         26.99        3.5448    1   0   4         8
                26.40        100.00        3.3765    2   0   2         8
                27.38          6.82        3.2570    2   1   1        16
                27.88         65.46        3.1999    1   1   4         8
                29.04         37.65        3.0744    2   1   2        16
                32.76         23.27        2.7335    2   0   4         8
                33.33          2.97        2.6884    0   0   6         2
                34.10         31.88        2.6290    2   2   0         4
                35.93          6.89        2.4996    2   2   2         8
                37.58         22.16        2.3936    1   1   6         8
                37.98          3.37        2.3693    3   0   2         8
                38.28          4.01        2.3515    3   1   0         8
                39.94          9.33        2.2575    3   1   2        16
                40.98          2.96        2.2023    2   2   4         8
                43.28          3.29        2.0907    2   1   6        16
                44.28          1.72        2.0457    3   2   1        16
                44.61         12.65        2.0313    3   1   4        16
                44.96          3.46        2.0163    0   0   8         2
                46.68          5.20        1.9460    1   0   8         8
                48.35          2.60        1.8826    1   1   8         8
                48.43          1.45        1.8796    2   2   6         8
                49.00         10.53        1.8590    4   0   0         4
                49.65          4.57        1.8362    3   2   4        16
                50.95          1.43        1.7923    4   1   1        16
                51.64          9.35        1.7699    3   1   6        16
                53.50          1.01        1.7127    3   3   2         8
                55.24          1.52        1.6627    4   2   0         8
                55.84          1.18        1.6463    4   1   4        16
                56.51          6.33        1.6285    4   2   2        16
                57.32          3.83        1.6074    3   3   4         8
                60.48          1.29        1.5306    3   1   8        16
                62.80          5.37        1.4798    2   0  10         8
                63.62          1.02        1.4625    4   3   2        16
                64.65          2.58        1.4417    3   2   8        16
                68.41          1.86        1.3714    5   1   4        16
                69.00          2.24        1.3610    5   2   2        16
                83.50          1.09        1.1578    4   2  10        16
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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.