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 = 200 K
      _database_code_amcsd 0009117

      CELL PARAMETERS:    5.3453   5.4835   7.6507   90.000   90.000   90.000
      SPACE GROUP: Pbnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    224.249
      Density (g/cm3):      3.089
      MAX. ABS. INTENSITY / VOLUME**2:      6.308270901    
      RIR:      0.665
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.24         35.86        3.8276    1   1   0         4
                23.25         15.27        3.8254    0   0   2         2
                26.03          8.52        3.4231    1   1   1         8
                32.66         24.98        2.7418    0   2   0         2
                33.11         86.80        2.7057    1   1   2         8
                33.53         15.45        2.6727    2   0   0         2
                36.84          9.07        2.4396    1   2   0         4
                37.43         19.26        2.4025    2   1   0         4
                38.74         19.41        2.3243    1   2   1         8
                39.14         43.12        2.3017    1   0   3         4
                39.31         29.64        2.2921    2   1   1         8
                40.48         40.84        2.2285    0   2   2         4
                41.20         26.14        2.1909    2   0   2         4
                42.60         15.39        2.1223    1   1   3         8
                44.02         17.67        2.0569    1   2   2         8
                44.53          8.93        2.0345    2   1   2         8
                47.51        100.00        1.9138    2   2   0         4
                47.54         54.22        1.9127    0   0   4         2
                48.77          7.30        1.8673    0   2   3         4
                49.07          6.54        1.8566    2   2   1         8
                51.87          5.25        1.7629    1   2   3         8
                52.32          4.91        1.7487    2   1   3         8
                52.75          4.30        1.7353    3   0   1         4
                52.94         12.05        1.7295    1   3   0         4
                53.54          9.22        1.7116    2   2   2         8
                53.56          7.02        1.7110    1   1   4         8
                54.12          1.14        1.6946    3   1   0         4
                54.39         15.19        1.6869    1   3   1         8
                55.55          3.65        1.6545    3   1   1         8
                58.57         18.80        1.5759    1   3   2         8
                58.87         19.75        1.5687    0   2   4         4
                59.42         15.48        1.5554    2   0   4         4
                59.68         45.87        1.5493    3   1   2         8
                62.13          2.42        1.4940    3   2   0         4
                62.77          1.41        1.4802    2   3   1         8
                63.21          3.52        1.4711    1   0   5         4
                65.17          3.83        1.4314    1   3   3         8
                66.22          1.83        1.4114    3   1   3         8
                66.63          2.28        1.4035    2   3   2         8
                68.44          8.10        1.3709    0   4   0         2
                69.48         29.06        1.3529    2   2   4         8
                69.68          1.35        1.3494    0   4   1         4
                70.46          4.63        1.3363    4   0   0         2
                70.98          4.69        1.3279    1   4   0         4
                72.84          4.36        1.2985    2   3   3         8
                72.85          2.76        1.2983    4   1   0         4
                72.99          7.21        1.2963    1   2   5         8
                73.36          3.31        1.2906    2   1   5         8
                73.36          1.02        1.2905    0   4   2         4
                73.46          3.90        1.2891    3   2   3         8
                73.88          4.97        1.2828    1   3   4         8
                74.06          1.48        1.2800    4   1   1         8
                75.34          2.03        1.2616    4   0   2         4
                75.84          1.50        1.2545    1   4   2         8
                77.67          3.08        1.2294    4   1   2         8
                78.40          2.26        1.2198    2   4   0         4
                79.13          3.52        1.2103    3   3   2         8
                79.17          6.08        1.2098    1   1   6         8
                79.85          1.55        1.2012    4   2   0         4
                80.34          2.57        1.1951    2   2   5         8
                81.77          1.06        1.1778    1   4   3         8
                83.23          1.93        1.1608    3   0   5         4
                83.56          2.30        1.1570    4   1   3         8
                84.55          3.28        1.1460    1   3   5         8
                85.01          2.88        1.1410    3   3   3         8
                85.50          3.19        1.1357    3   1   5         8
                87.56          4.73        1.1142    0   4   4         4
                88.95          3.58        1.1004    2   4   3         8
                89.46          2.84        1.0954    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.