Pyrophanite-ecandrewsite
      Mitchell R H, Liferovich R P
      The Canadian Mineralogist 42 (2004) 1871-1880
      The pyrophanite-ecandrewsite solid-solution: crystal structures
      of the Mn1-xZnxSiO3 series (0.1 <= x <= 0.8)
      Sample: x = .5, ilmenite structure
      _database_code_amcsd 0005998

      CELL PARAMETERS:    5.1063   5.1063  14.0992   90.000   90.000  120.000
      SPACE GROUP: R-3       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    318.374
      Density (g/cm3):      4.882
      MAX. ABS. INTENSITY / VOLUME**2:      52.15964846    
      RIR:      3.479
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                21.05          1.63        4.2195    1   0   1         6
                23.75         23.72        3.7461    0   1   2         6
                32.48        100.00        2.7563    1   0   4         6
                35.15         66.96        2.5531    1   1   0         6
                37.84          1.56        2.3776    0   1   5         6
                40.20          4.32        2.2435    2  -1   3         6
                40.20         16.19        2.2435    1   1   3         6
                41.33          2.83        2.1844    0   2   1         6
                42.87          1.04        2.1098    2   0   2         6
                48.61         36.74        1.8731    0   2   4         6
                49.74          1.27        1.8330    1   0   7         6
                52.60          1.67        1.7400    2   0   5         6
                52.96         22.69        1.7290    2  -1   6         6
                52.96         15.84        1.7290    1   1   6         6
                55.35          1.00        1.6598    2   1   1         6
                56.18         10.50        1.6372    0   1   8         6
                56.59          1.79        1.6263   -1   3   2         6
                61.39         12.08        1.5102    2   1   4         6
                61.39         18.04        1.5102    3  -1   4         6
                63.07         28.13        1.4741    3   0   0         6
                68.03          3.31        1.3782    2   0   8         6
                70.05          8.85        1.3433    1   0  10         6
                70.53          3.24        1.3353    1   1   9         6
                74.30          6.79        1.2766    2   2   0         6
                78.94          3.03        1.2128   -1   3   8         6
                78.94          2.24        1.2128    1   2   8         6
                79.29          1.29        1.2083    3   1   2         6
                80.86          4.81        1.1888    0   2  10         6
                83.44          3.11        1.1584   -1   4   4         6
                83.44          5.75        1.1584    1   3   4         6
                86.83          2.72        1.1217    4  -2   6         6
                86.83          3.61        1.1217    2   2   6         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.