Manganite
      Kohler T, Armbruster T, Libowitzky E
      Journal of Solid State Chemistry 133 (1997) 486-500
      Hydrogen bonding and Jahn-Teller distortion in groutite, alpha-MnOOH,
      and manganite, gamma-MnOOH, and their relations to the manganese
      dioxides ramsdellite and pyrolusite
      Locality: Nchwaning Mine, Kalahari manganese field, Republic of South Africa
      Note: Uiso corrected
      _database_code_amcsd 0013942

      CELL PARAMETERS:    5.3040   5.2770   5.3040   90.000  114.380   90.000
      SPACE GROUP: P2_1/c    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    135.217
      Density (g/cm3):      4.319
      MAX. ABS. INTENSITY / VOLUME**2:      50.89579017    
      RIR:      3.837
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                26.17        100.00        3.4054   -1   1   1         4
                33.98         26.63        2.6385    0   2   0         2
                35.57         13.60        2.5239    1   1   1         4
                37.22         20.24        2.4155    0   0   2         2
                37.22         19.94        2.4155    2   0   0         2
                39.70         10.51        2.2706   -1   2   1         4
                40.47          2.94        2.2289   -2   0   2         2
                41.10          4.61        2.1964    0   1   2         4
                41.10          4.97        2.1964    2   1   0         4
                51.28         14.21        1.7817    0   2   2         4
                51.28         13.85        1.7817    2   2   0         4
                53.84         11.77        1.7027   -2   2   2         4
                54.96         20.25        1.6707   -1   1   3         4
                54.96         19.60        1.6707   -3   1   1         4
                56.22          9.58        1.6362   -1   3   1         4
                61.84         12.56        1.5003    1   3   1         4
                64.89          6.62        1.4370    2   0   2         2
                65.23          5.74        1.4303   -3   1   3         4
                71.22          4.00        1.3240    3   1   1         4
                71.22          4.24        1.3240    1   1   3         4
                71.47          2.24        1.3200   -2   0   4         2
                71.47          2.06        1.3200   -4   0   2         2
                75.31          3.47        1.2620    2   2   2         4
                76.55          1.38        1.2446   -3   3   1         4
                76.55          1.49        1.2446   -1   3   3         4
                81.54          2.59        1.1805   -4   2   2         4
                81.54          2.79        1.1805   -2   2   4         4
                83.49          2.42        1.1578    2   4   0         4
                83.49          2.50        1.1578    0   4   2         4
                85.54          4.84        1.1353   -2   4   2         4
                85.55          2.32        1.1351   -3   3   3         4
                87.54          2.30        1.1145   -4   0   4         2
                89.18          1.94        1.0982    4   2   0         4
                89.18          2.14        1.0982    0   2   4         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.