Haydeeite
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R120085
      Malcherek T, Schluter J
      Acta Crystallographica B63 (2007) 157-160
      Cu3MgCl2(OH)6 and the bond-valence parameters of the OH-Cl bond
      Locality: Haydee mine, Salar Grande, Atacama desert, Chile
      _database_code_amcsd 0009948

      CELL PARAMETERS:   6.2860  6.2860  5.7560   90.000   90.000  120.000
      SPACE GROUP: P-3m1     

           ATOM        X         Y         Z     OCCUPANCY  ISO(B)
            Cu     0.50000   0.00000   0.00000     1.000     0.933
            Mg     0.00000   0.00000   0.00000     1.000     0.774
            Cl     0.66667   0.33333   0.36355     1.000     1.327
            O      0.64810   0.82405   0.15579     1.000     0.916
            H      0.20300   0.79700   0.28300     1.000     1.974

            X-RAY WAVELENGTH:     1.541838
            BOUNDS ON TWO THETA:    5.0  90.0
            LIMITS IMPOSED ON THE INDICES ARE:  +/-  4 +/-  4 +/-  5
            MAX. ABS. INTENSITY / VOLUME**2:      51.59853908    
            The INTENSITY cut off value is   1.00

               2-THETA      INTENSITY    D-SPACING   H   K   L
                15.39        100.00        5.7560    0   0   1
                16.28         22.56        5.4438    1   0   0
                22.48          1.49        3.9551    0   1   1
                31.07          9.18        2.8780    0   0   2
                32.46         18.33        2.7585    1   1   1
                32.91         15.76        2.7219    2   0   0
                35.28         10.51        2.5443    1   0   2
                35.28          1.38        2.5443    0   1   2
                36.52         68.80        2.4607    0   2   1
                36.52          6.65        2.4607    2   0   1
                42.59          1.13        2.1226    1   1   2
                44.01          1.29        2.0576    2   1   0
                45.89         20.34        1.9776    0   2   2
                45.89         16.31        1.9776    2   0   2
                47.38          3.42        1.9187    0   0   3
                50.43          2.23        1.8096    0   1   3
                52.90          2.51        1.7306    0   3   1
                52.90          1.11        1.7306    3   0   1
                54.85          4.43        1.6738    2   1   2
                58.76         16.76        1.5715    2   2   0
                58.89          9.56        1.5682    0   2   3
                58.89          4.80        1.5682    2   0   3
                61.13         11.16        1.5160    2   2   1
                66.65          2.02        1.4032    1   2   3
                67.96          5.15        1.3793    2   2   2
                69.01          1.75        1.3610    4   0   0
                70.42          1.59        1.3370    1   3   2
                71.19          1.10        1.3244    0   4   1
                71.19          6.24        1.3244    4   0   1
                74.60          3.32        1.2722    0   2   4
                74.60          4.91        1.2722    2   0   4
                77.60          2.62        1.2303    0   4   2
                77.60          2.69        1.2303    4   0   2
                78.71          3.81        1.2158    2   2   3
                87.97          2.22        1.1101    4   0   3
                87.97          1.09        1.1101    0   4   3
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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.