Piypite
      Kahlenberg V, Piotrowski A, Giester G
      Mineralogical Magazine 64 (2000) 1099-1108
      Crystal structure of Na4[Cu4O2(SO4)4]*MeCl (Me: Na, Cu, vac) - the synthetic
      Na-analogue of piypite (caratiite)
      Locality; synthetic
      _database_code_amcsd 0014554

      CELL PARAMETERS:   18.4510  18.4510   4.9520   90.000   90.000   90.000
      SPACE GROUP: P4/n      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1685.856
      Density (g/cm3):      3.259
      MAX. ABS. INTENSITY / VOLUME**2:      28.45168652    
      RIR:      2.842
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 9.59        100.00        9.2255    2   0   0         4
                13.57         53.13        6.5234    2   2   0         4
                19.24          1.73        4.6128    4   0   0         4
                21.54         11.87        4.1258    2   4   0         4
                21.54          6.82        4.1258    4   2   0         4
                23.56         15.80        3.7755    3   1   1         8
                23.56          9.52        3.7755    1   3   1         8
                26.85          1.36        3.3202    1   4   1         8
                27.29         13.23        3.2677    3   3   1         8
                27.34          3.05        3.2617    4   4   0         4
                29.04         17.53        3.0752    6   0   0         4
                30.60         26.80        2.9216    1   5   1         8
                30.65          6.96        2.9174    2   6   0         4
                33.61         37.04        2.6664    5   3   1         8
                33.61         21.79        2.6664    3   5   1         8
                34.68          1.15        2.5866    6   1   1         8
                35.07          1.56        2.5587    4   6   0         4
                36.28         22.81        2.4760    0   0   2         2
                37.40          1.02        2.4045    6   3   1         8
                37.61          1.06        2.3914    2   0   2         8
                38.91          2.64        2.3149    2   2   2         8
                39.02         30.02        2.3085    5   5   1         8
                39.02          1.75        2.3085    1   7   1         8
                40.31          3.07        2.2375    8   2   0         4
                40.31         15.96        2.2375    2   8   0         4
                41.39          1.04        2.1816    4   0   2         8
                41.49          1.56        2.1762    7   3   1         8
                41.49          9.31        2.1762    3   7   1         8
                41.53          1.81        2.1745    6   6   0         4
                42.58          1.08        2.1230    4   2   2         8
                46.02          1.53        1.9721    4   4   2         8
                46.12          4.56        1.9682    5   7   1         8
                47.12          6.01        1.9286    6   0   2         8
                49.39          1.84        1.8451   10   0   0         4
                50.44          1.90        1.8093    2  10   0         4
                50.44          3.08        1.8093   10   2   0         4
                51.35          1.75        1.7793    6   4   2         8
                52.46          1.15        1.7444    7   7   1         8
                53.49          2.71        1.7131   10   4   0         4
                54.36          3.69        1.6876    8   0   2         8
                54.45          1.64        1.6852    5   9   1         8
                55.34          6.43        1.6601    8   2   2         8
                55.34          9.97        1.6601    2   8   2         8
                56.42          4.15        1.6309    8   8   0         4
                58.07          1.19        1.5883    3   1   3         8
                58.32          3.89        1.5822    6  10   0         4
                59.94          1.39        1.5432    3   3   3         8
                60.16          1.36        1.5382    7   9   1         8
                60.16          1.84        1.5382   11   3   1         8
                61.77          2.35        1.5018    1   5   3         8
                62.81          4.52        1.4795   10   0   2         8
                63.57          5.05        1.4635    5   3   3         8
                63.57          2.06        1.4635    3   5   3         8
                63.70          3.85        1.4608   10   2   2         8
                63.70          1.91        1.4608    2  10   2         8
                63.78          1.95        1.4592   11   5   1         8
                64.70          2.29        1.4408   10   8   0         4
                66.35          1.93        1.4088   10   4   2         8
                67.10          3.66        1.3950    5   5   3         8
                68.95          2.08        1.3620    8   8   2         8
                70.65          2.35        1.3332    6  10   2         8
                70.73          3.37        1.3320   13   3   1         8
                70.73          2.90        1.3320    3  13   1         8
                74.09          1.94        1.2797    5  13   1         8
                76.50          1.13        1.2453   10   8   2         8
                77.03          1.44        1.2380    0   0   4         2
                80.65          2.04        1.1913    1  15   1         8
                82.27          1.09        1.1719    3  15   1         8
                85.49          1.26        1.1358    9  13   1         8
                86.22          1.15        1.1281    4  14   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.