Talmessite
      Catti M, Ferraris G, Ivaldi G
      Bulletin de Mineralogie 100 (1977) 230-236
      Hydrogen bonding in the crystalline state. Structure of talmessite,
      Ca2(Mg,Co)(AsO4)2*2H2O, and crystal chemistry of related minerals
      Locality: Bou-Azzer, Morocco
      _database_code_amcsd 0012065

      CELL PARAMETERS:    5.8740   6.9430   5.5370   97.300  108.700  108.100
      SPACE GROUP: P-1       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    196.762
      Density (g/cm3):      3.669
      MAX. ABS. INTENSITY / VOLUME**2:      15.05696019    
      RIR:      1.336
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                13.87         16.02        6.3869    0   1   0         2
                17.18          6.79        5.1601    1   0   0         2
                17.47         22.77        5.0758    0   0   1         2
                17.60         33.56        5.0396   -1   1   0         2
                19.28         21.32        4.6025   -1   0   1         2
                19.41          7.31        4.5740    0  -1   1         2
                22.59         15.80        3.9358   -1   1   1         2
                25.01         32.72        3.5610    0   1   1         2
                25.01         33.13        3.5604   -1  -1   1         2
                25.94          4.94        3.4346    1   1   0         2
                26.78         33.58        3.3293   -1   2   0         2
                27.02          9.15        3.3001    1  -1   1         2
                27.94         58.67        3.1934    0   2   0         2
                29.01        100.00        3.0782    1   0   1         2
                29.05         25.70        3.0742    0  -2   1         2
                31.68          2.84        2.8243   -2   1   1         2
                31.91         51.99        2.8046    1  -2   1         2
                32.19          9.09        2.7805   -2   1   0         2
                32.37         71.73        2.7659   -2   0   1         2
                32.40         30.62        2.7636   -1   2   1         2
                32.84         59.67        2.7268   -1   0   2         2
                34.59         21.32        2.5932    0  -1   2         2
                34.77         13.80        2.5800    2   0   0         2
                35.37          2.28        2.5379    0   0   2         2
                35.63          1.08        2.5198   -2   2   0         2
                35.88          9.85        2.5031   -1  -2   1         2
                36.77          2.58        2.4444   -1   1   2         2
                36.83          1.35        2.4402    0   2   1         2
                36.96         17.25        2.4322   -2   2   1         2
                38.29          1.93        2.3504    1   2   0         2
                38.74         13.66        2.3244   -2  -1   1         2
                39.28          3.54        2.2936   -1   3   0         2
                41.97         26.09        2.1526   -1  -2   2         2
                42.41          3.95        2.1313    2   1   0         2
                42.46          1.22        2.1290    0   3   0         2
                42.76          2.44        2.1149    2  -2   1         2
                43.86         16.64        2.0643   -2   3   0         2
                44.54          9.24        2.0341    1  -2   2         2
                44.99         10.57        2.0148   -1   3   1         2
                45.09          1.10        2.0106    2   0   1         2
                45.28         16.04        2.0029   -1   2   2         2
                46.13          3.95        1.9679   -2   2   2         2
                46.42          1.12        1.9563   -3   1   1         2
                48.16         21.28        1.8896    1   2   1         2
                48.36          4.71        1.8822   -3   2   1         2
                48.92         14.61        1.8618   -2  -2   1         2
                49.46          1.24        1.8429   -3   1   0         2
                49.90          2.69        1.8276   -1   0   3         2
                49.94          9.97        1.8261   -3   2   0         2
                50.88          9.14        1.7946    1  -3   2         2
                51.31         11.09        1.7805    0   2   2         2
                51.32          4.13        1.7802   -2  -2   2         2
                51.56          2.64        1.7725   -3   0   2         2
                52.11          2.49        1.7553   -2   0   3         2
                52.25          1.67        1.7507    1   3   0         2
                52.34          1.73        1.7481    0  -1   3         2
                52.52          1.82        1.7423    1   1   2         2
                53.26         18.06        1.7200    3   0   0         2
                53.35          7.21        1.7173    2   2   0         2
                53.62          9.47        1.7093   -3   2   2         2
                53.84         15.59        1.7029    1  -4   1         2
                54.09          2.01        1.6956   -1   1   3         2
                54.09          3.56        1.6954   -2  -1   3         2
                54.21         20.78        1.6919    0   0   3         2
                54.24          7.22        1.6911   -1  -2   3         2
                54.62          9.14        1.6803    0  -2   3         2
                55.18          1.43        1.6646   -2   4   0         2
                55.71          5.44        1.6501    2  -2   2         2
                55.95          1.31        1.6435    2  -1   2         2
                56.73          5.21        1.6226   -3  -1   2         2
                57.74          8.39        1.5967    0   4   0         2
                57.97          4.53        1.5909    3  -2   1         2
                58.64         14.16        1.5743   -2   4   1         2
                58.78          1.15        1.5709    3  -1   1         2
                59.97          5.58        1.5426   -2  -2   3         2
                60.12          7.59        1.5391    2   0   2         2
                60.33          4.80        1.5342   -3   0   3         2
                60.34          3.67        1.5339   -2   2   3         2
                60.56          5.82        1.5289   -3   3   2         2
                60.70          1.23        1.5257    1  -1   3         2
                61.03          1.63        1.5182    1  -2   3         2
                61.05          5.85        1.5178    3  -3   1         2
                61.92          2.55        1.4986   -1   2   3         2
                62.47          1.92        1.4867   -2  -3   2         2
                62.80          2.92        1.4797    1   2   2         2
                62.89          4.05        1.4779   -3   4   0         2
                63.60          1.67        1.4629    2   2   1         2
                63.74          1.99        1.4601    0   3   2         2
                63.86          5.15        1.4577   -4   2   1         2
                63.99          5.19        1.4551   -4   1   1         2
                64.56          1.70        1.4435   -3   2   3         2
                65.35          4.33        1.4280   -3  -2   2         2
                65.56          1.04        1.4240    0   4   1         2
                65.56          8.41        1.4238   -1  -4   2         2
                66.17          2.50        1.4122   -4   2   2         2
                66.70         11.98        1.4023    2  -4   2         2
                67.35          1.55        1.3903   -4   2   0         2
                67.39          4.32        1.3895   -4   3   1         2
                67.76          4.44        1.3830   -4   0   2         2
                67.77          1.61        1.3827   -4   0   1         2
                67.82          1.73        1.3818   -2   4   2         2
                68.06          2.27        1.3775   -1  -1   4         2
                68.73          1.74        1.3658   -2   5   0         2
                68.86          5.79        1.3634   -2   0   4         2
                69.06          2.35        1.3601    0   2   3         2
                69.13          1.30        1.3588   -2  -3   3         2
                69.16          2.03        1.3584   -1   0   4         2
                69.43          1.55        1.3537   -2  -1   4         2
                69.65          2.56        1.3499   -2   3   3         2
                70.12          6.08        1.3421    0  -4   3         2
                70.48          5.23        1.3361   -1   4   2         2
                70.55          1.61        1.3350   -1  -2   4         2
                70.64          1.87        1.3335   -3   4   2         2
                70.89          5.19        1.3293   -3  -2   3         2
                71.35          3.95        1.3219    3   2   0         2
                71.36          2.80        1.3217    3   1   1         2
                72.96          1.30        1.2966    0  -2   4         2
                72.99          1.30        1.2962    1  -5   2         2
                73.51          2.15        1.2883   -2  -2   4         2
                74.34          1.56        1.2759   -4   4   1         2
                74.69          2.27        1.2708    2  -3   3         2
                74.82          1.24        1.2689    0   0   4         2
                74.95          1.26        1.2671   -4  -1   1         2
                75.05          1.11        1.2657   -1   5   1         2
                76.28          2.38        1.2483    4  -2   1         2
                76.32          6.05        1.2477   -2  -4   1         2
                76.91          5.76        1.2397    1   4   1         2
                76.91          2.17        1.2396    2   3   1         2
                77.05          1.08        1.2378    2  -5   2         2
                77.49          1.38        1.2318    3  -5   1         2
                78.21          1.38        1.2222   -2   2   4         2
                78.47          4.15        1.2189    2   2   2         2
                78.68          2.74        1.2161   -4   4   2         2
                80.00          2.05        1.1994   -3   2   4         2
                80.58          1.66        1.1921    1  -2   4         2
                81.36          1.28        1.1827    1  -1   4         2
                81.63          1.58        1.1795   -1   2   4         2
                81.82          1.09        1.1772   -2   4   3         2
                81.94          2.43        1.1758    4  -4   1         2
                82.34          1.68        1.1710    0  -5   3         2
                82.37          1.22        1.1707    3   2   1         2
                82.47          2.54        1.1695   -3   4   3         2
                83.11          1.07        1.1622   -4  -2   2         2
                83.50          1.39        1.1578   -3   5   2         2
                84.13          1.35        1.1506   -4   0   4         2
                84.21          2.56        1.1498    4   0   1         2
                85.50          3.03        1.1357    1   0   4         2
                86.92          1.95        1.1208   -4   2   4         2
                88.45          2.16        1.1053    3  -2   3         2
                89.06          1.10        1.0993    2  -5   3         2
                89.11          2.61        1.0988    1  -4   4         2
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.