Guyanaite
      Jahn S, Wunder B, Koch-Muller M, Tarrieu L, Pohle M, Watenphul A, Taran M N
      European Journal of Mineralogy 24 (2012) 839-850
      Pressure-induced hydrogen bond symmetrisation in guyanaite, B-CrOOH:
      evidence from spectroscopy and ab initio simulations
      Sample: Run LT9
      Locality: synthetic at 4.0 GPa and 600 deg C for 24 hours
      _database_code_amcsd 0019391

      CELL PARAMETERS:    4.8623   4.2972   2.9567   90.000   90.000   90.000
      SPACE GROUP: P2_1nm    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     61.778
      Density (g/cm3):      4.569
      MAX. ABS. INTENSITY / VOLUME**2:      44.08148622    
      RIR:      3.142
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                27.70        100.00        3.2199    1   1   0         2
                35.54         22.32        2.5263    1   0   1         2
                36.90         60.35        2.4358    0   1   1         4
                36.98         17.52        2.4311    2   0   0         1
                41.46         15.57        2.1778    1   1   1         4
                42.05          3.56        2.1486    0   2   0         2
                42.73          9.69        2.1160    2   1   0         2
                53.23         30.63        1.7207    2   1   1         4
                56.20         40.37        1.6367    1   2   1         4
                57.22         16.07        1.6100    2   2   0         2
                61.11          9.79        1.5165    3   1   0         2
                62.86          9.46        1.4784    0   0   2         2
                65.70         14.68        1.4212    3   0   1         2
                68.26          7.16        1.3740    1   3   0         2
                70.03         10.18        1.3435    1   1   2         4
                73.46          3.46        1.2891    0   3   1         4
                75.22          3.21        1.2631    2   0   2         2
                76.44          1.10        1.2460    1   3   1         4
                78.54          1.20        1.2179    0   2   2         4
                79.01          1.38        1.2119    2   1   2         4
                81.14          2.45        1.1854    3   2   1         4
                85.20          6.14        1.1389    2   3   1         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.