Gatedalite
      Halenius U, Bosi F
      Mineralogical Magazine 79 (2015) 625-634
      Gatedalite, Zr(Mn2+2Mn3+4)SiO12, a new mineral species of the braunite
      group from Langban, Sweden
      Locality: Langban deposit, Langban, Sweden
      _database_code_amcsd 0020385

      CELL PARAMETERS:    9.4668   9.4668  18.8701   90.000   90.000   90.000
      SPACE GROUP: I4_1/acd  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1691.144
      Density (g/cm3):      4.539
      MAX. ABS. INTENSITY / VOLUME**2:      68.88649414    
      RIR:      4.942
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                16.24          6.39        5.4595    1   1   2         8
                21.00          1.78        4.2308    2   0   2         8
                25.36          4.12        3.5122    2   1   3        16
                32.81        100.00        2.7298    2   2   4         8
                38.02         11.46        2.3667    4   0   0         4
                38.15          5.35        2.3588    0   0   8         2
                41.59          3.49        2.1714    3   3   2         8
                41.65          5.40        2.1684    3   1   6        16
                41.92          6.25        2.1553    3   2   5        16
                48.31          1.98        1.8839    4   3   1        16
                50.07          1.96        1.8217    5   1   2        16
                52.34          1.57        1.7479    4   1   7        16
                54.86         12.66        1.6735    4   4   0         4
                54.96         30.39        1.6707    4   0   8         8
                59.73          1.83        1.5483    4   1   9        16
                61.37          1.54        1.5108    6   1   3        16
                63.07          1.39        1.4739    5   4   1        16
                65.41         16.15        1.4267    6   2   4        16
                65.59          9.89        1.4233    2   2  12         8
                68.78          4.64        1.3649    4   4   8         8
                81.31          2.06        1.1833    8   0   0         4
                81.64          1.83        1.1794    0   0  16         2
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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.