Edgrewite
      Galuskin E V, Lazic B, Armbruster T, Galuskina I O, Pertsev N N, Gazeev V M,
      Wlodyka R, Dulski M, Dzierzanowski P, Zadov A E, Dubrovinsky L S
      American Mineralogist 97 (2012) 1998-2006
      Edgrewite Ca9(SiO4)4F2-hydroxyledgrewite Ca9(SiO4)4(OH)2, a new series
      of calcium humite-group minerals from altered xenoliths in the ignimbrite
      of Upper Chegem caldera, Northern Caucasus, Kabardino-Balkaria, Russia
      Locality: Upper Chegem caldera, Northern Caucasus, Kabardino-Balkaria, Russia
      _database_code_amcsd 0019557

      CELL PARAMETERS:    5.0687  11.3579  15.4004  100.598   90.000   90.000
      SPACE GROUP: P2_1/b    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    871.474
      Density (g/cm3):      2.911
      MAX. ABS. INTENSITY / VOLUME**2:      6.815634064    
      RIR:      0.762
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 5.84          4.11       15.1377    0   0   1         2
                11.69          1.98        7.5688    0   0   2         2
                15.88          1.36        5.5821    0   2   0         2
                15.88         19.63        5.5811    0  -2   1         2
                17.58          1.93        5.0459    0   0   3         2
                17.92          4.32        4.9501    0   2   1         2
                17.93          9.95        4.9482    0  -2   2         2
                20.54          1.31        4.3239    1   1   1         4
                21.09         14.84        4.2115    1   0   2         4
                21.45         16.83        4.1432    0   2   2         2
                21.46         12.78        4.1412    0  -2   3         2
                21.78          1.99        4.0808    1  -1   2         4
                23.32         39.04        3.8137    1   1   2         4
                23.51          7.13        3.7844    0   0   4         2
                23.71          8.90        3.7525    1   2   0         4
                23.71          4.95        3.7522    1  -2   1         4
                24.90          3.23        3.5760    1   0   3         4
                25.14         30.88        3.5424    1  -1   3         4
                25.15          3.12        3.5415    1   2   1         4
                27.16          2.37        3.2835    1   1   3         4
                27.82          3.95        3.2070    1  -2   3         4
                29.36         25.68        3.0420    1  -1   4         4
                29.46          1.13        3.0324    1   0   4         4
                29.49         93.36        3.0294    1  -3   1         4
                29.50          9.87        3.0275    0   0   5         2
                29.78         22.68        2.9997    1   3   0         4
                30.38          2.50        2.9421    1  -3   2         4
                30.89         15.24        2.8949    0   2   4         2
                30.90         13.26        2.8937    0  -2   5         2
                31.25         26.90        2.8627    1   3   1         4
                31.51          6.58        2.8395    0  -4   1         2
                31.70         73.69        2.8231    1   1   4         4
                32.38         60.99        2.7648    1  -3   3         4
                33.71         10.62        2.6590    0   4   1         2
                33.72          8.27        2.6581    0  -4   3         2
                33.73         28.62        2.6570    1   3   2         4
                34.16         51.80        2.6247    1  -1   5         4
                35.42         10.53        2.5343    2   0   0         2
                35.72         15.67        2.5138    1   2   4         4
                35.73         16.33        2.5130    1  -2   5         4
                36.26         22.46        2.4772    1  -4   1         4
                36.31          1.89        2.4741    0  -4   4         2
                36.35         11.50        2.4715    2   1   0         4
                36.72          4.61        2.4476    1   1   5         4
                37.07          7.70        2.4254    1   3   3         4
                37.83          3.07        2.3781    2  -1   2         4
                38.79          6.70        2.3217    2   1   2         4
                39.01          3.10        2.3089    1  -3   5         4
                39.38          1.58        2.2882    1  -1   6         4
                39.67          1.29        2.2718    0   4   3         2
                39.69          3.46        2.2707    0  -4   5         2
                39.96          3.48        2.2561    2  -1   3         4
                41.78          2.92        2.1620    2   2   2         4
                41.79          3.04        2.1617    2  -2   3         4
                42.10          2.63        2.1462    1   1   6         4
                42.97          1.23        2.1047    2  -3   1         4
                43.69          2.44        2.0717    1  -5   1         4
                43.91          1.43        2.0620    1  -5   2         4
                44.92          8.77        2.0181    1  -1   7         4
                44.97          3.21        2.0157    1  -5   3         4
                45.61          1.78        1.9891    1   0   7         4
                45.75          2.76        1.9833    1   2   6         4
                45.76          2.06        1.9827    1  -2   7         4
                45.80          5.47        1.9813    1   5   1         4
                46.74          2.85        1.9433    2   0   5         4
                46.84          1.05        1.9397    1  -5   4         4
                47.69         49.77        1.9069    2   2   4         4
                47.70         50.23        1.9065    2  -2   5         4
                47.78          4.51        1.9034    1   1   7         4
                48.08          3.63        1.8923    1  -3   7         4
                48.12         33.34        1.8908    2  -4   1         4
                49.43          1.20        1.8437    1  -5   5         4
                49.70         10.15        1.8345    2   4   1         4
                49.71          6.19        1.8343    2  -4   3         4
                50.51         11.02        1.8070    0   6   1         2
                50.52         11.56        1.8065    0  -6   4         2
                50.61         13.44        1.8036    1   3   6         4
                50.96          9.09        1.7919    1   5   3         4
                51.63          2.14        1.7704    2  -4   4         4
                52.69          7.87        1.7373    1  -5   6         4
                53.23          8.75        1.7208    0   4   6         2
                53.26          7.01        1.7200    0  -4   8         2
                53.27          8.01        1.7196    1  -3   8         4
                53.73          1.17        1.7058    1   1   8         4
                53.95          2.61        1.6995    0   2   8         2
                53.97          3.08        1.6991    0  -2   9         2
                54.22          1.65        1.6916    2   4   3         4
                54.24          4.57        1.6912    2  -4   5         4
                54.56         31.85        1.6820    0   0   9         2
                54.97          5.19        1.6705    3   1   0         4
                55.15          1.82        1.6655    3  -1   1         4
                55.71         19.49        1.6500    0   6   3         2
                55.73         20.02        1.6494    0  -6   6         2
                55.75          1.25        1.6490    3   0   2         4
                56.05          2.79        1.6408    3  -1   2         4
                56.05          1.10        1.6406    2   5   1         4
                56.50          1.60        1.6288    1  -4   8         4
                56.76          6.07        1.6219    3   1   2         4
                56.94          1.19        1.6171    3  -2   1         4
                57.65          2.10        1.5991    3  -1   3         4
                58.83          3.67        1.5697    1  -3   9         4
                59.87         17.39        1.5448    1  -7   2         4
                59.91          1.36        1.5440    3  -1   4         4
                59.98          4.90        1.5424    3  -3   1         4
                60.39          1.12        1.5328    1  -7   3         4
                61.00          1.78        1.5190    3   3   1         4
                61.27          4.50        1.5130    3   1   4         4
                61.68          4.90        1.5038    3  -3   3         4
                61.72          6.03        1.5030    1   3   8         4
                62.52          2.28        1.4857    3   3   2         4
                62.78          3.92        1.4800    3  -1   5         4
                63.19          1.96        1.4714    1   5   6         4
                63.20          2.49        1.4713    2   6   1         4
                63.21          1.21        1.4710    2  -6   4         4
                63.30          3.16        1.4693    0   6   5         2
                63.33          3.05        1.4686    0  -6   8         2
                63.78          6.62        1.4592    3   2   4         4
                63.79          6.10        1.4591    3  -2   5         4
                64.14          3.79        1.4520    3  -4   1         4
                64.36          1.12        1.4474    0   4   8         2
                64.39          1.24        1.4468    0  -4  10         2
                64.74          4.73        1.4400    1  -3  10         4
                65.45          1.59        1.4260    3   4   1         4
                65.46          2.23        1.4259    3  -4   3         4
                65.60          1.64        1.4232    2  -4   8         4
                65.78          1.00        1.4197    0  -8   2         2
                66.75          6.11        1.4014    2   0   9         4
                67.77          2.50        1.3828    2   6   3         4
                67.79          2.47        1.3824    2  -6   6         4
                68.25          1.94        1.3742    1   5   7         4
                70.76          1.93        1.3314    3   0   7         4
                70.98          1.60        1.3279    1  -5  10         4
                72.43          1.02        1.3048    3   1   7         4
                74.24          1.03        1.2774    1   3  10         4
                74.36          1.22        1.2757    2  -7   6         4
                74.66          2.38        1.2712    3   3   6         4
                74.94          5.89        1.2672    4   0   0         2
                74.95          4.12        1.2671    3   5   3         4
                75.67          3.91        1.2569    2   4   8         4
                75.69          3.70        1.2565    2  -4  10         4
                75.72          1.37        1.2561    2   7   3         4
                76.35          4.18        1.2474    3  -5   6         4
                76.80          1.49        1.2411    1  -1  12         4
                76.83          2.10        1.2408    3  -3   8         4
                76.98          2.31        1.2386    2  -8   2         4
                77.21          1.02        1.2356    3   1   8         4
                77.32          1.24        1.2341    3   6   1         4
                77.33          1.40        1.2340    3  -6   4         4
                77.64          2.87        1.2298    1  -3  12         4
                78.19          1.75        1.2224    2   8   0         4
                78.21          1.16        1.2223    2  -8   4         4
                79.50          1.91        1.2056    3   4   6         4
                79.52          1.51        1.2053    3  -4   8         4
                79.79          1.03        1.2019    3  -1   9         4
                81.09          2.70        1.1859    1   3  11         4
                81.52          1.27        1.1808    3  -3   9         4
                82.33          1.06        1.1712    4  -1   5         4
                82.43          6.31        1.1701    3  -7   2         4
                83.23          3.57        1.1608    4   2   4         4
                83.23          3.41        1.1608    4  -2   5         4
                83.46          6.29        1.1582    1   9   2         4
                83.55          2.82        1.1572    4  -4   1         4
                83.94          5.26        1.1527    1   7   7         4
                84.05          2.55        1.1516    3   3   8         4
                84.19          1.69        1.1500    1  -1  13         4
                84.83          6.05        1.1429    1  -9   7         4
                86.67          5.25        1.1233    1  -7  11         4
                86.75          1.85        1.1225    3  -3  10         4
                87.34          1.30        1.1164    0  10   0         2
                87.36          1.59        1.1162    0 -10   5         2
                87.70          1.25        1.1128    2   4  10         4
                87.73          1.02        1.1125    2  -4  12         4
                88.06          2.70        1.1092    1   1  13         4
                88.41          1.02        1.1057    1   3  12         4
                89.82          1.12        1.0920    4   5   1         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.