Effenbergerite
      Giester G, Rieck B
      Mineralogical Magazine 58 (1994) 663-670
      Effenbergerite, BaCu[Si4O10], a new mineral from the Kalahari Manganese Field,
      South Africa: description and crystal structure
      Locality: Wessels mine, Kalahari Manganese Field, South Africa
      _database_code_amcsd 0018763

      CELL PARAMETERS:    7.4420   7.4420  16.1330   90.000   90.000   90.000
      SPACE GROUP: P4/ncc    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    893.500
      Density (g/cm3):      3.517
      MAX. ABS. INTENSITY / VOLUME**2:      32.38314271    
      RIR:      2.998
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                10.97         38.91        8.0665    0   0   2         2
                16.20          5.60        5.4698    1   0   2         8
                16.85          7.48        5.2623    1   1   0         4
                20.15         46.18        4.4074    1   1   2         8
                22.04          7.07        4.0332    0   0   4         2
                25.11         26.25        3.5460    1   0   4         8
                26.38        100.00        3.3788    2   0   2         8
                27.36          5.85        3.2595    2   1   1        16
                27.87         71.82        3.2012    1   1   4         8
                29.02         37.26        3.0766    2   1   2        16
                32.75         27.18        2.7349    2   0   4         8
                33.32          3.16        2.6888    0   0   6         2
                34.08         37.26        2.6311    2   2   0         4
                35.90         12.21        2.5014    2   2   2         8
                37.56         32.88        2.3944    1   1   6         8
                37.95          3.36        2.3711    3   0   2         8
                38.24          6.44        2.3534    3   1   0         8
                38.66          1.24        2.3287    3   1   1        16
                39.90         16.69        2.2592    3   1   2        16
                40.95          6.37        2.2037    2   2   4         8
                43.26          4.18        2.0915    2   1   6        16
                44.24          1.89        2.0474    3   2   1        16
                44.58         25.27        2.0326    3   1   4        16
                44.95          5.37        2.0166    0   0   8         2
                45.35          2.77        1.9996    3   2   2        16
                46.67          8.15        1.9464    1   0   8         8
                47.84          1.45        1.9014    3   1   5        16
                48.33          6.46        1.8831    1   1   8         8
                48.40          2.73        1.8806    2   2   6         8
                48.96         18.80        1.8605    4   0   0         4
                49.61          7.64        1.8374    3   2   4        16
                50.33          3.82        1.8129    4   0   2         8
                50.91          1.68        1.7938    4   1   1        16
                51.55          3.45        1.7730    2   0   8         8
                51.61         23.36        1.7709    3   1   6        16
                53.46          2.89        1.7140    3   3   2         8
                55.20          6.88        1.6641    4   2   0         8
                55.80          2.61        1.6475    4   1   4        16
                56.46         17.80        1.6298    4   2   2        16
                57.27         11.20        1.6086    3   3   4         8
                57.59          3.00        1.6006    2   2   8         8
                60.15          2.15        1.5383    4   2   4        16
                60.46          5.74        1.5313    3   1   8        16
                60.51          2.71        1.5300    4   0   6         8
                62.68          1.41        1.4821    4   3   1        16
                62.78         13.23        1.4802    2   0  10         8
                63.30          4.95        1.4691    3   3   6         8
                63.56          2.20        1.4637    4   3   2        16
                64.61          5.87        1.4424    3   2   8        16
                64.93          3.14        1.4362    5   1   2        16
                66.37          1.29        1.4085    5   1   3        16
                67.02          1.79        1.3964    5   0   4         8
                68.18          2.12        1.3753    2   2  10         8
                68.35          9.78        1.3724    5   1   4        16
                68.63          4.24        1.3674    4   0   8         8
                68.94          5.43        1.3621    5   2   2        16
                69.95          2.45        1.3449    4   1   8        16
                69.98          2.10        1.3444    0   0  12         2
                71.25          1.84        1.3235    3   3   8         8
                71.28          1.02        1.3230    1   0  12         8
                71.75          2.44        1.3156    4   4   0         4
                72.85          1.48        1.2984    4   4   2         8
                73.83          2.44        1.2835    4   2   8        16
                73.88          6.14        1.2827    5   1   6        16
                74.32          1.24        1.2763    5   3   0         8
                75.40          1.66        1.2606    5   3   2        16
                76.86          1.21        1.2403    6   0   0         4
                77.40          1.21        1.2330    5   1   7        16
                77.93          2.25        1.2259    6   0   2         8
                78.63          2.58        1.2168    5   3   4        16
                79.18          1.20        1.2096    6   1   2        16
                80.14          2.07        1.1975    5   0   8         8
                80.17          5.25        1.1972    2   2  12         8
                81.39          2.28        1.1823    5   1   8        16
                81.86          1.74        1.1767    6   2   0         8
                82.66          1.39        1.1674    3   1  12        16
                82.92          2.86        1.1644    6   2   2        16
                83.45          8.15        1.1583    4   2  10        16
                83.92          6.54        1.1530    5   3   6        16
                86.07          2.00        1.1296    6   2   4        16
                86.37          1.07        1.1265    3   2  12        16
                86.45          1.41        1.1257    1   1  14         8
                88.80          1.64        1.1018    4   4   8         8
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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.