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 0019392

      CELL PARAMETERS:    4.8623   4.2972   2.9567   90.000   90.000   90.000
      SPACE GROUP: Pnnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     61.778
      Density (g/cm3):      4.623
      MAX. ABS. INTENSITY / VOLUME**2:      41.89392922    
      RIR:      2.951
      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         4
                35.54         21.24        2.5263    1   0   1         4
                36.90         65.78        2.4358    0   1   1         4
                36.98         19.55        2.4311    2   0   0         2
                41.46         16.51        2.1778    1   1   1         8
                42.05          4.00        2.1486    0   2   0         2
                42.73          9.97        2.1160    2   1   0         4
                53.23         32.93        1.7207    2   1   1         8
                56.20         42.18        1.6367    1   2   1         8
                57.22         17.48        1.6100    2   2   0         4
                61.11         10.02        1.5165    3   1   0         4
                62.86         10.13        1.4784    0   0   2         2
                65.70         15.45        1.4212    3   0   1         4
                68.26          7.16        1.3740    1   3   0         4
                70.03         10.60        1.3435    1   1   2         8
                73.46          3.91        1.2891    0   3   1         4
                75.22          3.45        1.2631    2   0   2         4
                76.44          1.12        1.2460    1   3   1         8
                78.54          1.28        1.2179    0   2   2         4
                79.01          1.41        1.2119    2   1   2         8
                81.14          2.23        1.1854    3   2   1         8
                85.20          6.80        1.1389    2   3   1         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.