Triphylite
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R050424
      Losey A, Rakovan J F, Hughes J M, Francis C A, Dyar M D
      The Canadian Mineralogist 42 (2004) 1105-1115
      Structural variation in the lithiophilite-triphylite series
      and other olivine-group structures
      Sample: Trip50
      Locality: BB#7 Quarry, Norway, Maine

      CELL PARAMETERS:   4.704425   10.36619   6.032862   90.00000   90.00000   90.00000
      SPACE GROUP: Pbnm
      X-RAY WAVELENGTH:     1.541838
               2-THETA      INTENSITY    D-SPACING   H   K   L
                17.09         30.72        5.1831    0   2   0
                20.72         62.36        4.2839    1   1   0
                22.60         19.11        3.9314    0   2   1
                23.97          8.10        3.7098    1   0   1
                25.48         77.38        3.4929    1   1   1
                25.55         14.20        3.4835    1   2   0
                29.59         67.49        3.0164    0   0   2
                29.59         11.45        3.0167    1   2   1
                32.11         28.50        2.7849    1   3   0
                34.37          2.07        2.6071    0   2   2
                35.47        100.00        2.5285    1   3   1
                36.40         30.21        2.4664    1   1   2
                37.75         21.72        2.3811    0   4   1
                39.24         11.77        2.2939    2   1   0
                39.48         11.06        2.2803    1   2   2
                39.67         14.71        2.2699    1   4   0
                42.11          7.67        2.1441    2   1   1
                42.15         11.06        2.1420    2   2   0
                44.23          6.33        2.0462    1   3   2
                44.87          5.05        2.0185    2   2   1
                46.14          2.40        1.9657    0   4   2
                47.91          1.51        1.8972    1   5   0
                49.07         12.38        1.8549    2   0   2
                49.24          1.03        1.8491    1   0   3
                49.90          3.24        1.8259    2   1   2
                50.07         13.96        1.8204    1   1   3
                50.38          6.08        1.8098    1   5   1
                52.34         32.76        1.7464    2   2   2
                52.50          5.79        1.7416    1   2   3
                52.49          7.97        1.7417    2   4   0
                52.95          1.15        1.7277    0   6   0
                54.81         16.24        1.6734    2   4   1
                55.26         18.10        1.6609    0   6   1
                56.39         22.18        1.6303    1   3   3
                57.32          2.63        1.6059    1   5   2
                58.00         12.06        1.5887    0   4   3
                61.25          1.22        1.5122    2   1   3
                61.42         13.81        1.5082    0   0   4
                61.52          4.62        1.5061    2   5   1
                61.72          9.26        1.5017    3   1   1
                61.75          2.16        1.5010    3   2   0
                61.83         12.49        1.4992    0   6   2
                63.85          3.79        1.4565    3   2   1
                65.56          2.94        1.4226    1   1   4
                66.09          6.94        1.4126    1   7   0
                67.17          1.86        1.3924    2   6   0
                67.33          4.41        1.3896    3   3   1
                67.86          1.39        1.3800    1   5   3
                69.18          3.15        1.3568    2   6   1
                69.95         10.43        1.3438    3   2   2
                70.08          1.30        1.3416    3   4   0
                71.01          3.45        1.3262    1   3   4
                71.61          2.53        1.3166    2   4   3
                72.00          6.24        1.3105    0   6   3
                72.05          4.83        1.3096    3   4   1
                73.28          2.79        1.2907    3   3   2
                74.05          8.36        1.2792    1   7   2
                74.70          1.52        1.2696    2   0   4
                75.36          1.85        1.2602    2   1   4
                77.31          3.50        1.2332    2   2   4
                77.52          2.72        1.2303    2   5   3
                77.70          2.40        1.2279    3   1   3
                81.83          1.30        1.1761    4   0   0
                82.84          2.23        1.1643    3   3   3
                83.09          1.54        1.1614    1   1   5
                83.45          1.52        1.1573    2   7   2
                83.63          3.40        1.1553    3   5   2
                83.73          1.96        1.1542    1   8   2
                84.38          1.02        1.1469    4   2   0
                84.57          2.01        1.1448    2   6   3
                85.00          1.73        1.1402    2   4   4
                84.99          1.35        1.1402    3   6   1
                85.37          1.29        1.1362    0   6   4
                87.02          1.82        1.1188    1   9   0
                87.29          3.99        1.1161    3   4   3
                87.35          2.75        1.1154    2   8   1
                88.17          5.29        1.1071    1   3   5
                89.96          4.06        1.0897    4   1   2
                89.96          4.06        1.0897    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.