Petalite
      Ross N L, Zhao J, Slebodnick C, Spencer E C, Chakoumakos B C
      American Mineralogist 100 (2015) 714-721
      Petalite under pressure: Elastic behavior and phase stability
      Note: P = 0.0001 GPa
      Locality: Aracuai pegmatite district, Minas Gerais, Brazil
      _database_code_amcsd 0020423

      CELL PARAMETERS:   11.2296   5.1396  11.7514   90.000  141.312   90.000
      SPACE GROUP: P2/c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    423.952
      Density (g/cm3):      2.399
      MAX. ABS. INTENSITY / VOLUME**2:      9.078749739    
      RIR:      1.232
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                12.61          1.74        7.0194    1   0   0         2
                16.31          3.29        5.4333   -1   0   2         2
                16.39          2.42        5.4068   -2   0   2         2
                19.12          6.28        4.6420   -1   1   1         4
                21.10          4.91        4.2111    0   1   1         4
                23.83         96.44        3.7338   -1   1   2         4
                23.89        100.00        3.7251   -2   1   2         4
                24.23         75.11        3.6728    0   0   2         2
                24.40         71.78        3.6483   -3   0   2         2
                24.71          5.84        3.6033   -2   1   1         4
                25.38         33.16        3.5097    2   0   0         2
                28.82         10.60        3.0983   -2   1   3         4
                29.21          4.67        3.0576    1   1   1         4
                29.90          9.42        2.9882    0   1   2         4
                30.04          8.93        2.9750   -3   1   2         4
                30.29          4.36        2.9511   -3   1   3         4
                32.97          3.58        2.7167   -2   0   4         2
                33.14          3.69        2.7034   -4   0   4         2
                34.53          2.82        2.5974   -3   1   1         4
                34.91         15.31        2.5698    0   2   0         2
                35.34          3.95        2.5401    1   0   2         2
                35.53          3.17        2.5266   -4   0   2         2
                37.06          2.36        2.4256    0   2   1         4
                37.26          3.64        2.4132    1   2   0         4
                37.44          4.43        2.4018   -2   1   4         4
                37.59          3.64        2.3926   -4   1   4         4
                38.47          1.21        2.3398    3   0   0         2
                42.43          1.26        2.1302   -4   1   5         4
                43.65          4.20        2.0734    2   2   0         4
                43.75         11.51        2.0691   -1   1   4         4
                44.01         11.98        2.0574   -5   1   4         4
                45.50          1.75        1.9934   -5   1   5         4
                46.98         19.14        1.9342   -3   2   4         4
                47.82          5.40        1.9020    2   0   2         2
                48.04          5.06        1.8940   -5   0   2         2
                48.11          2.74        1.8912   -2   1   5         4
                49.64          1.43        1.8364    0   0   4         2
                50.00          1.20        1.8241   -6   0   4         2
                50.39          1.08        1.8111   -3   0   6         2
                50.52          2.54        1.8065    1   2   2         4
                50.65          1.11        1.8023   -6   0   6         2
                50.67          2.46        1.8017   -4   2   2         4
                51.34          1.12        1.7795    1   1   3         4
                52.02          2.09        1.7581   -6   1   5         4
                52.12          4.28        1.7548    4   0   0         2
                52.95          5.90        1.7293    0   1   4         4
                53.29          5.28        1.7191   -6   1   4         4
                53.66          1.04        1.7082   -3   1   6         4
                53.91          1.09        1.7007   -6   1   6         4
                55.54          1.14        1.6547   -5   2   5         4
                56.05          1.01        1.6408   -5   2   3         4
                56.31          6.44        1.6339   -1   3   2         4
                56.33          6.68        1.6332   -2   3   2         4
                57.58          1.27        1.6006   -6   1   3         4
                59.54          1.31        1.5526    0   3   2         4
                59.62          1.28        1.5507   -3   3   2         4
                60.56          3.10        1.5288    2   2   2         4
                60.75          3.14        1.5247   -5   2   2         4
                62.77          8.74        1.4804   -3   2   6         4
                62.99          4.18        1.4756   -6  -2   6         4
                64.25          3.04        1.4497    1   1   4         4
                64.28          2.50        1.4491   -2   3   4         4
                64.29          2.00        1.4489    3   1   2         4
                64.38          3.20        1.4471   -4   3   4         4
                64.51          1.89        1.4444   -6   1   2         4
                66.50          3.34        1.4060   -1   0   6         2
                66.62          2.52        1.4039    5   0   0         2
                68.75          1.94        1.3654   -1   3   4         4
                68.95          1.04        1.3620   -5  -3   4         4
                72.57          1.43        1.3026    1   2   4         4
                73.74          3.96        1.2849    0   4   0         2
                75.96          2.52        1.2527    0   3   4         4
                76.23          1.47        1.2489    4   0   2         2
                77.36          3.12        1.2335   -1   2   6         4
                77.47          4.45        1.2320    5   2   0         4
                78.87          1.75        1.2136    4   1   2         4
                78.94          1.45        1.2128    0   4   2         4
                79.00          1.96        1.2119   -3   4   2         4
                85.73          1.27        1.1333    1   3   4         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.