Steedeite
      Haring M M M, McDonald A M
      The Canadian Mineralogist 52 (2014) 47-60
      Steedeite, NaMn2[Si3BO9](OH)2: characterization, crystal-structure determination, and origin
      Locality: Poudrette quarry, Monteregie, Quebec, Canada
      _database_code_amcsd 0020229

      CELL PARAMETERS:    6.8370   7.5750   8.8410   99.910  102.190  102.780
      SPACE GROUP: P-1       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    424.812
      Density (g/cm3):      3.174
      MAX. ABS. INTENSITY / VOLUME**2:      10.29943623    
      RIR:      1.057
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                10.52        100.00        8.4109    0   0   1         2
                12.31         29.75        7.1901    0   1   0         2
                14.25         13.35        6.2152    0  -1   1         2
                20.84          3.60        4.2635    1   1   0         2
                21.13          4.47        4.2055    0   0   2         2
                21.90          5.95        4.0588    0  -1   2         2
                22.04          3.83        4.0324   -1   0   2         2
                24.59          1.86        3.6196    0  -2   1         2
                24.74         10.54        3.5987   -1  -1   2         2
                24.77          7.10        3.5950    0   2   0         2
                25.90          3.22        3.4407   -1   1   2         2
                26.18          2.16        3.4036    1   1   1         2
                26.27          9.76        3.3920    1  -2   1         2
                26.91         54.32        3.3137    0   1   2         2
                26.96          1.77        3.3069   -2   0   1         2
                27.11         17.61        3.2893    1  -1   2         2
                27.15          2.34        3.2844   -2   1   0         2
                28.19         10.04        3.1651    1   0   2         2
                28.73          5.60        3.1076    0  -2   2         2
                29.17         25.85        3.0615    0   2   1         2
                30.17         10.00        2.9621   -1  -2   1         2
                31.32          7.35        2.8560   -1   0   3         2
                31.48         28.89        2.8422    0  -1   3         2
                31.78          3.08        2.8160   -2   1   2         2
                31.80         75.34        2.8138   -2  -1   1         2
                31.97         70.90        2.7992   -2   2   0         2
                32.25          3.22        2.7760    2   0   1         2
                33.26          8.88        2.6940   -2   2   1         2
                33.40          4.82        2.6830    2   1   0         2
                33.77          4.42        2.6541   -2  -1   2         2
                34.23          2.98        2.6195    2  -2   1         2
                34.28          2.63        2.6160   -1   2   2         2
                35.81         14.76        2.5075    0  -2   3         2
                36.33          1.23        2.4731    1   2   1         2
                36.33          3.36        2.4728   -1   3   0         2
                36.42          3.09        2.4672    0   2   2         2
                36.55         13.43        2.4585    0  -3   1         2
                36.64          2.59        2.4529   -2   0   3         2
                36.99          5.91        2.4301    0   1   3         2
                37.33          1.16        2.4086    2  -1   2         2
                37.53          4.07        2.3967    0   3   0         2
                38.75          9.42        2.3236   -2   1   3         2
                39.41          9.90        2.2862    2   0   2         2
                40.32         11.48        2.2369   -2  -2   1         2
                40.46         10.69        2.2292   -2   3   0         2
                41.58          2.38        2.1720   -1   0   4         2
                41.85          2.91        2.1584   -1  -3   1         2
                41.90         18.00        2.1559    0  -1   4         2
                42.10          2.37        2.1464    3   0   0         2
                42.29          9.42        2.1370   -2   3   1         2
                42.40          8.98        2.1317    2   2   0         2
                43.02          7.39        2.1027    0   0   4         2
                43.69          1.83        2.0717    0  -3   3         2
                44.65          5.52        2.0294    0  -2   4         2
                44.96          4.30        2.0162   -2   0   4         2
                45.51          1.35        1.9932   -1  -2   4         2
                45.79          3.05        1.9817    2  -1   3         2
                46.29          1.17        1.9614    3   0   1         2
                46.76          5.56        1.9426   -2   3   2         2
                46.81          2.28        1.9407   -3   1   3         2
                46.93          1.28        1.9361    2  -2   3         2
                47.09          4.69        1.9297    2   2   1         2
                47.47          3.21        1.9153   -2   1   4         2
                47.80          4.00        1.9028    0   3   2         2
                48.26          3.24        1.8859    2   0   3         2
                48.82          1.86        1.8654   -1   4   0         2
                48.93          1.64        1.8614    1   0   4         2
                49.35          3.72        1.8466    0  -4   1         2
                50.73          2.72        1.7997    3  -2   2         2
                50.74          3.75        1.7994   -2  -2   4         2
                50.79          1.31        1.7975    0   4   0         2
                50.98          1.45        1.7913   -3   2   3         2
                51.50          3.95        1.7744    2  -3   3         2
                52.42          1.24        1.7454   -3   0   4         2
                53.25          3.69        1.7203   -2   2   4         2
                53.33          1.83        1.7179   -2   4   1         2
                53.37          1.66        1.7168   -2   3   3         2
                53.42          3.01        1.7153    2   3   0         2
                53.54          3.32        1.7117   -2  -3   3         2
                53.63         21.90        1.7090   -4   1   1         2
                53.87          1.35        1.7018    2   2   2         2
                53.97          4.12        1.6991    2   1   3         2
                54.07          4.55        1.6960    2  -4   2         2
                54.43          2.89        1.6857   -3  -1   4         2
                54.55          8.82        1.6822    0   0   5         2
                54.61          3.63        1.6805   -4   1   2         2
                54.67          1.29        1.6787    0  -2   5         2
                54.74          2.67        1.6769    3  -3   2         2
                54.98          1.42        1.6700   -2  -1   5         2
                55.02          1.99        1.6690   -4   1   0         2
                55.24          1.13        1.6628   -4   0   1         2
                55.90          3.41        1.6448    0   3   3         2
                55.91          1.56        1.6447    2  -2   4         2
                57.76          6.03        1.5962   -2   4   2         2
                58.04          5.43        1.5892    2   3   1         2
                58.23          9.67        1.5845   -2  -3   4         2
                58.50          3.03        1.5777   -2  -2   5         2
                58.93          8.03        1.5672    2  -4   3         2
                59.21          1.65        1.5604    0   1   5         2
                59.39          2.52        1.5562    2  -3   4         2
                59.49          3.76        1.5538    0  -4   4         2
                60.62          1.81        1.5274   -4   2   3         2
                61.38          1.42        1.5104    4   0   1         2
                62.18          1.12        1.4930   -3  -3   2         2
                62.73          2.63        1.4811   -2  -4   2         2
                62.95          3.56        1.4764   -4   0   4         2
                63.04          2.40        1.4747    2  -5   1         2
                63.14          8.79        1.4726   -2   2   5         2
                63.28          1.18        1.4696   -2  -4   1         2
                63.37          1.22        1.4677    0  -5   2         2
                63.39          1.73        1.4672   -2   5   0         2
                63.97          7.32        1.4554    2   1   4         2
                64.08          3.41        1.4531    4  -2   2         2
                64.84          2.67        1.4380    0   5   0         2
                64.84          2.78        1.4380   -2  -3   5         2
                65.12          1.68        1.4325   -2  -1   6         2
                65.42          3.29        1.4266    0   3   4         2
                65.61          3.09        1.4228   -4  -1   4         2
                65.68          2.71        1.4215    2  -4   4         2
                66.13          1.75        1.4129    2  -2   5         2
                66.21          1.12        1.4116   -4   3   3         2
                66.40          1.18        1.4080   -4   2   4         2
                66.45          2.36        1.4069   -4  -2   2         2
                66.73          1.30        1.4018    0   0   6         2
                66.73          2.24        1.4017    4  -3   2         2
                66.85          2.50        1.3996   -4   4   0         2
                66.92          1.20        1.3983    4   1   1         2
                68.70          7.29        1.3663    0   5   1         2
                69.47          2.60        1.3529    0  -3   6         2
                70.32          3.33        1.3388    0  -5   4         2
                70.38          1.30        1.3378   -4   1   5         2
                71.38          1.30        1.3214   -2   3   5         2
                71.57          1.79        1.3185   -4  -1   5         2
                71.79          1.86        1.3149    4  -1   3         2
                72.16          1.40        1.3090    2   2   4         2
                73.59          1.16        1.2870   -5   3   0         2
                74.16          1.34        1.2787    5  -2   1         2
                74.23          1.60        1.2776   -2   2   6         2
                75.14          1.20        1.2643   -5  -1   2         2
                75.18          1.53        1.2638    2   1   5         2
                76.66          1.60        1.2430    0  -5   5         2
                77.68          1.63        1.2292    0  -6   2         2
                79.19          3.22        1.2096   -4   1   6         2
                79.43          1.28        1.2065    0  -6   3         2
                80.89          2.19        1.1884    4  -1   4         2
                85.61          1.34        1.1345    3   3   3         2
                88.83          1.66        1.1016   -4   4   5         2
                88.94          1.37        1.1005   -4  -4   1         2
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.