Feldspar
      Benna P, Tribaudino M, Bruno E
      American Mineralogist 81 (1996) 1337-1343
      The structure of ordered and disordered lead feldspar (PbAl2Si2O8)
      Sample: disordered
      _database_code_amcsd 0001839

      CELL PARAMETERS:    8.4280  13.0540   7.1740   90.000  115.320   90.000
      SPACE GROUP: C2/m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    713.454
      Density (g/cm3):      4.145
      MAX. ABS. INTENSITY / VOLUME**2:      30.09516050    
      RIR:      2.364
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                13.46          2.17        6.5798    1   1   0         4
                13.57         92.47        6.5270    0   2   0         2
                13.66         34.93        6.4848    0   0   1         2
                15.23         67.87        5.8159   -1   1   1         4
                19.29         43.58        4.6003    0   2   1         4
                21.41          3.85        4.1497   -2   0   1         2
                22.53         22.84        3.9470    1   1   1         4
                23.35         34.23        3.8092    2   0   0         2
                23.55         20.82        3.7784    1   3   0         4
                24.62         36.25        3.6153   -1   3   1         4
                25.43         45.88        3.5019   -2   2   1         4
                25.76         94.29        3.4588   -1   1   2         4
                27.10        100.00        3.2899    2   2   0         4
                27.33          1.01        3.2635    0   4   0         2
                27.46         17.41        3.2481   -2   0   2         2
                27.51         23.22        3.2424    0   0   2         2
                29.78         55.71        2.9996    1   3   1         4
                30.67         22.66        2.9152    0   4   1         4
                31.93          1.49        2.8025    2   0   1         2
                32.35         44.52        2.7678   -1   3   2         4
                32.63          5.20        2.7444   -3   1   1         4
                34.84          6.32        2.5751    2   2   1         4
                34.98         34.19        2.5652   -2   4   1         4
                35.00         29.68        2.5635   -3   1   2         4
                35.08         28.18        2.5579    1   1   2         4
                36.03          9.64        2.4927    3   1   0         4
                36.25          5.77        2.4783    2   4   0         4
                37.11         11.75        2.4225   -1   5   1         4
                38.08          4.74        2.3632   -2   0   3         2
                38.15          8.38        2.3588   -3   3   1         4
                38.75          9.07        2.3239   -1   1   3         4
                40.24         13.09        2.2410   -3   3   2         4
                40.31         10.85        2.2372    1   3   2         4
                40.60          9.43        2.2221   -2   2   3         4
                40.86         13.20        2.2085    1   5   1         4
                41.16          1.57        2.1933    3   3   0         4
                41.51         10.87        2.1757    0   6   0         2
                41.79          3.04        2.1616    0   0   3         2
                42.31          5.33        2.1362   -3   1   3         4
                42.52          5.61        2.1261    2   4   1         4
                42.84          6.72        2.1109   -1   5   2         4
                43.42          7.96        2.0842   -4   0   1         2
                43.61          3.98        2.0756   -1   3   3         4
                43.62          2.77        2.0749   -4   0   2         2
                43.72          2.92        2.0704    2   0   2         2
                43.89          4.35        2.0627    0   6   1         4
                44.05         13.69        2.0556    3   1   1         4
                44.13          6.79        2.0520    0   2   3         4
                45.70          9.05        1.9855   -4   2   1         4
                45.89          6.73        1.9774   -4   2   2         4
                45.99          7.94        1.9735    2   2   2         4
                46.86          6.89        1.9386   -3   3   3         4
                47.17          3.26        1.9269   -2   6   1         4
                47.50          2.47        1.9141   -2   4   3         4
                47.56          2.33        1.9117   -3   5   1         4
                47.75          9.16        1.9046    4   0   0         2
                48.33          4.64        1.8833   -4   0   3         2
                48.48          8.97        1.8778    3   3   1         4
                48.97          3.98        1.8600    1   1   3         4
                49.33          5.30        1.8474   -3   5   2         4
                49.39          5.03        1.8453    1   5   2         4
                49.88          1.56        1.8283    4   2   0         4
                50.11          1.35        1.8204    3   5   0         4
                50.43          1.13        1.8095   -4   2   3         4
                50.49          1.42        1.8076   -2   6   2         4
                50.52          2.29        1.8066    0   6   2         4
                50.65          8.97        1.8021    0   4   3         4
                50.92         15.21        1.7935   -2   0   4         2
                52.06          8.54        1.7566   -4   4   1         4
                52.95          4.56        1.7294   -2   2   4         4
                54.99          3.70        1.6699   -5   1   2         4
                55.10          3.24        1.6668    3   1   2         4
                55.10          5.24        1.6667   -3   5   3         4
                55.54          2.38        1.6546   -1   7   2         4
                55.89          1.32        1.6449    4   4   0         4
                56.39          1.72        1.6317    0   8   0         2
                56.54          6.23        1.6276    3   5   1         4
                56.68          1.75        1.6241   -4   0   4         2
                56.79          1.21        1.6212    0   0   4         2
                57.63          2.45        1.5994   -5   1   3         4
                58.57          7.16        1.5760   -4   2   4         4
                58.68          6.70        1.5734    0   2   4         4
                58.74          1.08        1.5718   -2   4   4         4
                58.80          2.96        1.5703   -5   3   2         4
                58.91          2.60        1.5677    3   3   2         4
                59.18          4.86        1.5612    2   2   3         4
                60.36          2.50        1.5334    0   6   3         4
                61.03          1.17        1.5182   -3   7   2         4
                61.08          1.24        1.5170    1   7   2         4
                61.25          1.22        1.5134    5   1   0         4
                61.35          6.38        1.5112   -5   3   3         4
                61.62          3.77        1.5051   -4   6   1         4
                61.86          5.91        1.4999    2   8   0         4
                63.87          1.74        1.4574   -5   1   4         4
                64.02          2.60        1.4543    1   1   4         4
                64.04          1.36        1.4540   -4   4   4         4
                64.14          1.22        1.4519    0   4   4         4
                64.62          5.73        1.4423    2   4   3         4
                64.83          2.19        1.4381    5   3   0         4
                65.09          2.35        1.4331    4   6   0         4
                66.63          3.18        1.4035   -6   0   2         2
                66.76          3.33        1.4012    4   0   2         2
                67.71          2.60        1.3839   -2   6   4         4
                68.41          2.69        1.3713   -5   5   3         4
                69.52          1.99        1.3521    5   1   1         4
                69.55          1.80        1.3516   -4   2   5         4
                69.96          1.89        1.3447   -1   9   2         4
                70.73          2.69        1.3320   -6   2   1         4
                71.76          3.45        1.3154   -1   3   5         4
                72.20          1.23        1.3084   -2   4   5         4
                72.28          1.65        1.3072   -6   0   4         2
                72.47          1.52        1.3042    2   0   4         2
                72.90          2.17        1.2976    5   3   1         4
                73.20          1.08        1.2931    2   6   3         4
                73.89          2.58        1.2826   -4   8   2         4
                73.96          2.68        1.2816    2   8   2         4
                74.59          2.34        1.2723   -4   4   5         4
                75.74          1.79        1.2558   -6   4   1         4
                75.92          1.61        1.2534   -3   5   5         4
                76.42          1.31        1.2464    6   2   0         4
                76.52          1.39        1.2449   -5   3   5         4
                80.62          1.37        1.1917    1   1   5         4
                81.31          1.40        1.1833    6   4   0         4
                81.77          1.05        1.1778    4   2   3         4
                84.09          1.23        1.1511   -4   8   4         4
                84.18          1.14        1.1501    0   8   4         4
                86.60          1.55        1.1241    4   4   3         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.