Marshite
      Hull S, Keen D A
      Physical Review B50 (1994) 5868-5885
      High-pressure polymorphism of the copper(I) halides:
      A neutron-diffraction study to ~10 GPa
      Note: P = 0 GPa
      Note: ZnS structure, sphalerite structure
      Note: known as CuI-III
      _database_code_amcsd 0015180

      CELL PARAMETERS:    6.0545   6.0545   6.0545   90.000   90.000   90.000
      SPACE GROUP: F-43m     
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    221.940
      Density (g/cm3):      5.699
      MAX. ABS. INTENSITY / VOLUME**2:      255.2550461    
      RIR:     14.584
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                25.48        100.00        3.4956    1   1   1         4
                29.51          8.22        3.0273    2   0   0         6
                42.22         60.51        2.1406    2   2   0        12
                49.96         37.15        1.8255    3   1   1        12
                52.35          2.10        1.7478    2   2   2         4
                61.24          7.71        1.5136    4   0   0         6
                67.42         11.96        1.3890    3   3   1        12
                69.42          2.67        1.3538    4   2   0        24
                77.19         12.26        1.2359    4   2   2        12
                82.85          5.50        1.1652    5   1   1        12
                82.85          1.83        1.1652    3   3   3         4
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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.