Neighborite
      Mitchell R H, Alexander M, Cranswick L M D, Swainson I P
      Physics and Chemistry of Minerals 34 (2007) 705-712
      A powder neutron diffraction study of the crystal structure of the
      fluoroperovskite NaMgF3 (neighborite) from 300 to 3.6 K
      Locality: synthetic
      Sample: T = 3.6 K
      _database_code_amcsd 0009125

      CELL PARAMETERS:    5.3287   5.4811   7.6335   90.000   90.000   90.000
      SPACE GROUP: Pbnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    222.953
      Density (g/cm3):      3.107
      MAX. ABS. INTENSITY / VOLUME**2:      6.113936459    
      RIR:      0.641
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.32          1.15        4.3694    1   0   1         4
                23.28         36.23        3.8207    1   1   0         4
                23.31         15.35        3.8168    0   0   2         2
                26.08          9.61        3.4166    1   1   1         8
                32.68         25.22        2.7406    0   2   0         2
                33.18         90.54        2.7002    1   1   2         8
                33.64         15.40        2.6644    2   0   0         2
                36.88          8.62        2.4371    1   2   0         4
                37.53         20.70        2.3962    2   1   0         4
                38.79         20.14        2.3217    1   2   1         8
                39.24         44.94        2.2962    1   0   3         4
                39.41         33.97        2.2862    2   1   1         8
                40.52         40.99        2.2261    0   2   2         4
                41.33         24.82        2.1847    2   0   2         4
                42.69         17.25        2.1178    1   1   3         8
                44.09         19.21        2.0541    1   2   2         8
                44.65          9.64        2.0294    2   1   2         8
                47.60        100.00        1.9104    2   2   0         4
                47.65         55.16        1.9084    0   0   4         2
                48.84          7.74        1.8647    0   2   3         4
                49.16          7.21        1.8532    2   2   1         8
                51.95          5.70        1.7600    1   2   3         8
                52.45          5.72        1.7445    2   1   3         8
                52.93          3.76        1.7300    3   0   1         4
                52.98         12.88        1.7283    1   3   0         4
                53.65         10.21        1.7083    2   2   2         8
                53.69          7.20        1.7073    1   1   4         8
                54.29          1.08        1.6897    3   1   0         4
                54.43         16.89        1.6856    1   3   1         8
                55.72          3.89        1.6498    3   1   1         8
                58.64         19.43        1.5744    1   3   2         8
                58.98         20.55        1.5661    0   2   4         4
                59.59         15.92        1.5515    2   0   4         4
                59.86         48.47        1.5451    3   1   2         8
                62.29          2.69        1.4905    3   2   0         4
                62.87          1.51        1.4783    2   3   1         8
                63.37          3.67        1.4677    1   0   5         4
                65.26          4.23        1.4297    1   3   3         8
                66.42          2.07        1.4076    3   1   3         8
                66.74          2.38        1.4015    2   3   2         8
                68.47          8.03        1.3703    0   4   0         2
                69.64         28.55        1.3501    2   2   4         8
                69.72          1.40        1.3487    0   4   1         4
                70.72          4.30        1.3322    4   0   0         2
                71.03          5.11        1.3271    1   4   0         4
                72.97          4.78        1.2965    2   3   3         8
                73.10          3.01        1.2945    4   1   0         4
                73.15          7.38        1.2938    1   2   5         8
                73.42          1.23        1.2897    0   4   2         4
                73.56          3.76        1.2876    2   1   5         8
                73.66          3.56        1.2861    3   2   3         8
                74.00          5.21        1.2810    1   3   4         8
                74.32          1.63        1.2763    4   1   1         8
                75.60          2.18        1.2578    4   0   2         4
                75.91          1.35        1.2535    1   4   2         8
                77.93          3.06        1.2259    4   1   2         8
                78.49          2.12        1.2186    2   4   0         4
                79.31          3.59        1.2081    3   3   2         8
                79.38          6.35        1.2071    1   1   6         8
                80.10          1.52        1.1981    4   2   0         4
                80.54          2.72        1.1926    2   2   5         8
                81.86          1.09        1.1767    1   4   3         8
                83.49          1.75        1.1578    3   0   5         4
                83.85          2.52        1.1538    4   1   3         8
                84.72          3.61        1.1442    1   3   5         8
                85.21          3.00        1.1389    3   3   3         8
                85.77          3.39        1.1328    3   1   5         8
                87.67          4.61        1.1131    0   4   4         4
                89.09          3.80        1.0990    2   4   3         8
                89.78          2.67        1.0924    4   0   4         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.