Berborite
      Giuseppetti G, Mazzi F, Tadini C, Larsen A O, Asheim A, Raade G
      Neues Jahrbuch fur Mineralogie, Abhandlungen 162 (1990) 101-116
      Berborite polytypes
      Locality: Saga I larvikite quarry, Morje, Porgrunn, Tvelan District, Norway
      Sample: 2T polytype
      Note: anisoU's from ICSD
      _database_code_amcsd 0014718

      CELL PARAMETERS:    4.4310   4.4310  10.6630   90.000   90.000  120.000
      SPACE GROUP: P3c1      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    181.307
      Density (g/cm3):      2.049
      MAX. ABS. INTENSITY / VOLUME**2:      6.182609441    
      RIR:      0.983
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                16.63         98.98        5.3315    0   0   2         1
                23.18         11.54        3.8374    1   0   0         3
                28.66         99.94        3.1145    1   0   2         3
                33.62         59.42        2.6658    0   0   4         1
                40.73         11.40        2.2155    1   1   0         6
                41.23          2.07        2.1893    1   0   4         3
                41.23          4.84        2.1893    0   1   4         3
                41.64         48.42        2.1692    1   1   1         6
                44.27         23.10        2.0459    1   1   2         6
                47.38          3.44        1.9187    2   0   0         3
                48.41         26.73        1.8802    1   1   3         6
                50.56          4.94        1.8053    0   2   2         3
                50.56          1.48        1.8053    2   0   2         3
                51.42          6.06        1.7772    0   0   6         1
                57.12          9.95        1.6126    1   0   6         3
                57.12          2.22        1.6126    0   1   6         3
                59.35          1.12        1.5573    0   2   4         3
                60.23         10.49        1.5364    1   1   5         6
                64.22          1.41        1.4504    2   1   0         6
                66.85          4.39        1.3995    2   1   2         6
                72.50          2.07        1.3038    0   2   6         3
                72.50          1.84        1.3038    2   0   6         3
                74.13         12.21        1.2791    3   0   0         3
                75.51          1.94        1.2591    0   1   8         3
                75.78          3.87        1.2552    1   1   7         6
                76.60          2.16        1.2438    0   3   2         3
                76.60          2.18        1.2438    3   0   2         3
                83.90          3.87        1.1532    0   3   4         3
                83.90          3.82        1.1532    3   0   4         3
                84.91          3.31        1.1421    1   1   8         6
                86.64          1.24        1.1237    1   2   6         6
                86.64          2.89        1.1237    2   1   6         6
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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.