BCTT
      Dollase W A, Ross C R
      American Mineralogist 78 (1993) 627-632
      Crystal structures of the body-centered tetragonal tectosilicates:
      K1.14Mg0.57Si1.43O4, K1.10Zn0.55Si1.45O4, and K1.11Fe1.11Si0.89O4
      Sample: Mg-rich phase
      _database_code_amcsd 0001571

      CELL PARAMETERS:    8.9570   8.9570   5.2810   90.000   90.000   90.000
      SPACE GROUP: I4mm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    423.683
      Density (g/cm3):      2.549
      MAX. ABS. INTENSITY / VOLUME**2:      9.767220664    
      RIR:      1.248
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                13.98         21.83        6.3336    1   1   0         4
                19.51         28.49        4.5492    1   0   1         4
                19.82         16.54        4.4785    2   0   0         4
                27.96        100.00        3.1915    2   1   1         8
                28.18         45.16        3.1668    2   2   0         4
                31.59         18.84        2.8325    3   1   0         8
                33.95         17.08        2.6405    0   0   2         1
                34.51         60.17        2.5991    3   0   1         4
                36.88         25.90        2.4372    1   1   2         4
                39.62          5.65        2.2746    2   0   2         4
                40.11         10.50        2.2479    3   2   1         8
                40.28         15.43        2.2392    4   0   0         4
                42.83          9.74        2.1112    3   3   0         4
                45.13          2.47        2.0090    4   1   1         8
                45.28          2.69        2.0028    4   2   0         8
                52.06          6.91        1.7566    5   1   0         8
                53.02          1.32        1.7273    1   0   3         4
                54.06          4.66        1.6965    5   0   1         4
                55.75          9.89        1.6489    3   3   2         4
                57.16          7.04        1.6116    2   1   3         8
                57.78          3.01        1.5957    4   2   2         8
                58.15          8.39        1.5864    5   2   1         8
                58.27          2.12        1.5834    4   4   0         4
                60.25          3.25        1.5361    5   3   0         8
                61.11         11.52        1.5164    3   0   3         4
                62.18          4.91        1.4928    6   0   0         4
                63.62          6.55        1.4625    5   1   2         8
                64.92          1.57        1.4363    3   2   3         8
                71.45          1.23        1.3203    0   0   4         1
                72.77          3.79        1.2995    6   0   2         4
                73.10          8.11        1.2945    6   3   1         8
                74.98          2.08        1.2667    5   5   0         4
                75.76          1.61        1.2556    5   0   3         4
                78.49          1.41        1.2186    2   2   4         4
                79.24          3.54        1.2090    5   2   3         8
                80.09          1.12        1.1982    7   2   1         8
                84.91          1.51        1.1421    5   5   2         4
                87.05          2.06        1.1194    3   3   4         4
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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.