Chivruaiite
      Men'shikov Y P, Krivovichev S V, Pakhomovsky Y A, Yakovenchuk V N,
      Ivanyuk G Yu, Mikhailova J A, Armbruster T, Selivanova E A
      American Mineralogist 91 (2006) 922-928
      Chivruaiite, Ca4(Ti,Nb)5[(Si6O17)2|(OH,O)5]*13-14H2O, a new mineral
      from hydrothermal veins of Khibiny and Lovozero alkaline massifs
      Locality: Chivruai River valley, Kola peninsula, Russia
      _database_code_amcsd 0004161

      CELL PARAMETERS:    7.1918  23.1660   6.9472   90.000   90.000   90.000
      SPACE GROUP: Cmmm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1157.440
      Density (g/cm3):      2.355
      MAX. ABS. INTENSITY / VOLUME**2:      14.83562664    
      RIR:      2.052
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 7.63        100.00       11.5830    0   2   0         2
                12.74         42.01        6.9472    0   0   1         2
                12.89         12.97        6.8684    1   1   0         4
                14.87          1.79        5.9578    0   2   1         4
                16.85         15.48        5.2628    1   3   0         4
                18.16          2.98        4.8843    1   1   1         8
                19.96         11.61        4.4485    0   4   1         4
                21.18          1.33        4.1950    1   3   1         8
                24.76          9.06        3.5959    2   0   0         2
                25.65          1.30        3.4736    0   0   2         2
                25.94         10.16        3.4342    2   2   0         4
                26.41         13.85        3.3748    0   6   1         4
                26.79          1.42        3.3272    0   2   2         4
                27.94          4.64        3.1935    2   0   1         4
                28.80          2.01        3.0997    1   1   2         8
                29.00         19.21        3.0786    2   2   1         8
                29.23         21.17        3.0549    2   4   0         4
                30.00         27.05        2.9789    0   4   2         4
                30.84          8.93        2.8991    1   3   2         8
                32.00          2.46        2.7965    2   4   1         8
                32.45          7.99        2.7591    1   7   1         8
                34.07         11.80        2.6314    2   6   0         4
                34.60          3.58        2.5924    1   5   2         8
                34.74         14.57        2.5823    0   6   2         4
                35.95          2.85        2.4983    2   0   2         4
                36.80          3.08        2.4422    2   2   2         8
                37.10          3.82        2.4235    1   9   0         4
                39.27          1.23        2.2940    2   4   2         8
                39.65          1.94        2.2732    1   7   2         8
                40.56          1.48        2.2242    0   8   2         4
                42.02          3.36        2.1502    0   4   3         4
                42.46          2.95        2.1291    3   5   0         4
                43.13          2.78        2.0975    2   6   2         8
                44.84          1.09        2.0211    1  11   0         4
                45.68          1.46        1.9859    0   6   3         4
                47.07          2.27        1.9305    0  12   0         2
                48.10          4.68        1.8916    2   8   2         8
                48.55          1.79        1.8752    2  10   1         8
                50.78          4.54        1.7980    4   0   0         2
                51.43          2.04        1.7767    4   2   0         4
                52.14          1.37        1.7543    3   9   0         4
                52.37          1.98        1.7469    1  11   2         8
                52.65          3.00        1.7384    2   6   3         8
                52.70          5.26        1.7368    0   0   4         2
                53.34          1.18        1.7176    0   2   4         4
                53.98          8.23        1.6987    2  10   2         8
                55.09          1.37        1.6669    4   4   1         8
                56.16          2.01        1.6378    0  10   3         4
                56.52          1.02        1.6281    3   3   3         8
                57.00          1.36        1.6157    2   8   3         8
                58.34          1.12        1.5818    4   2   2         8
                60.11          5.23        1.5393    4   4   2         8
                60.62          2.58        1.5276    2  12   2         8
                60.62          1.42        1.5275    4   8   0         4
                61.41          2.00        1.5099    2   4   4         8
                61.71          1.49        1.5032    2  14   0         4
                62.23          1.99        1.4918    4   8   1         8
                64.26          2.93        1.4495    2   6   4         8
                66.20          1.12        1.4117    1   9   4         8
                66.92          1.10        1.3983    4   8   2         8
                67.96          1.29        1.3793    4   4   3         8
                70.06          1.35        1.3431    2  16   0         4
                70.46          1.19        1.3364    0  16   2         4
                72.85          1.01        1.2983    3  15   0         4
                73.53          1.20        1.2880    2   2   5         8
                76.22          1.01        1.2492    4   0   4         4
                76.74          1.05        1.2420    4   2   4         8
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       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.