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 #630
      Locality: synthetic at 4.0 GPa and 600 deg C for 24 hours
      _database_code_amcsd 0019393

      CELL PARAMETERS:    4.8691   4.3184   2.9594   90.000   90.000   90.000
      SPACE GROUP: Pnnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     62.226
      Density (g/cm3):      4.590
      MAX. ABS. INTENSITY / VOLUME**2:      43.54091163    
      RIR:      3.089
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                27.61        100.00        3.2308    1   1   0         4
                35.50         19.38        2.5289    1   0   1         4
                36.82         59.29        2.4412    0   1   1         4
                36.92         19.88        2.4346    2   0   0         2
                41.37         15.25        2.1823    1   1   1         8
                41.84          3.63        2.1592    0   2   0         2
                42.63          9.84        2.1207    2   1   0         4
                53.13         31.97        1.7238    2   1   1         8
                56.00         41.73        1.6421    1   2   1         8
                57.01         16.07        1.6154    2   2   0         4
                60.99          9.14        1.5193    3   1   0         4
                62.80          9.65        1.4797    0   0   2         2
                65.60         14.50        1.4231    3   0   1         4
                67.90          6.48        1.3804    1   3   0         4
                69.92         10.41        1.3453    1   1   2         8
                73.10          4.33        1.2945    0   3   1         4
                75.13          3.45        1.2645    2   0   2         4
                76.08          1.12        1.2510    1   3   1         8
                78.34          1.19        1.2206    0   2   2         4
                78.88          1.40        1.2135    2   1   2         8
                80.90          2.18        1.1882    3   2   1         8
                84.83          6.19        1.1429    2   3   1         8
                89.91          6.40        1.0911    2   2   2         8
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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.