Sveinbergeite
      Khomyakov A P, Camara F, Sokolova E, Abdu Y, Hawthorne F C
      Mineralogical Magazine 75 (2011) 2687-2702
      Sveinbergeite, Ca(Fe2+6Fe3+)Ti2(Si4O12)2O2(OH)5(H2O)4, a new astrophyllite-group mineral
      from the Larvik Plutonic Complex, Oslo Region, Norway: description and crystal structure
      Locality: Larvik Plutonic Complex, Oslo Region, Norway
      _database_code_amcsd 0018570

      CELL PARAMETERS:    5.3290  11.8030  11.8220  101.140   98.224  102.442
      SPACE GROUP: P-1       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    699.079
      Density (g/cm3):      3.040
      MAX. ABS. INTENSITY / VOLUME**2:      39.34791397    
      RIR:      4.214
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 7.77        100.00       11.3818    0   0   1         2
                 7.89          7.70       11.2119    0   1   0         2
                 9.71         12.67        9.1130    0  -1   1         2
                15.75          1.02        5.6284    0  -1   2         2
                15.92          3.28        5.5664    0  -2   1         2
                19.20          2.67        4.6222    0   2   1         2
                20.38          3.18        4.3568   -1   2   0         2
                20.84          2.33        4.2620    1   1   0         2
                21.73          1.86        4.0904    1  -2   1         2
                21.96          1.14        4.0477   -1   2   1         2
                22.74          3.25        3.9104   -1  -1   2         2
                23.45          7.00        3.7939    0   0   3         2
                25.55          2.96        3.4859    1  -2   2         2
                25.95          2.19        3.4335   -1   2   2         2
                27.30          1.16        3.2663   -1  -1   3         2
                29.14          1.77        3.0648    1   1   2         2
                30.37          1.27        2.9432   -1  -2   3         2
                31.39          1.59        2.8499   -1   3   2         2
                31.44         13.73        2.8454    0   0   4         2
                31.51          1.21        2.8392   -1   2   3         2
                32.36          4.02        2.7666   -1   4   0         2
                32.53         10.76        2.7524   -1  -3   2         2
                34.01          7.15        2.6364   -2   1   0         2
                34.30          8.33        2.6147   -1   4   1         2
                35.11          7.41        2.5560   -1  -3   3         2
                36.06          6.12        2.4905    2  -1   1         2
                36.09          1.33        2.4889    1   3   1         2
                37.79          1.56        2.3807    1  -4   3         2
                37.89          5.50        2.3747   -1   4   2         2
                39.22          2.71        2.2968   -1  -3   4         2
                39.70          5.60        2.2703    2  -1   2         2
                40.56          2.27        2.2243    1   3   2         2
                42.65          1.89        2.1197    1  -4   4         2
                42.78          1.23        2.1137   -1   4   3         2
                43.28          3.16        2.0904   -2   1   4         2
                44.53          1.20        2.0349   -1  -3   5         2
                48.67          1.53        1.8707   -1   4   4         2
                50.48          2.10        1.8080    2  -1   4         2
                50.74          2.30        1.7993   -1  -3   6         2
                55.36          1.67        1.6595   -1   4   5         2
                55.91          2.74        1.6444    0  -7   2         2
                56.10          2.09        1.6394    0  -7   1         2
                57.16          1.29        1.6116    2  -1   5         2
                58.84          2.67        1.5694   -3  -2   2         2
                59.16          1.48        1.5617   -3  -2   1         2
                59.39          2.65        1.5563   -3   5   0         2
                59.86          1.23        1.5451   -3   5   1         2
                67.36          1.24        1.3902   -2  -6   1         2
                67.69          1.04        1.3842    2  -8   2         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.