As2 Ca0.7 Na0.3 Sn2
      Asbrand M, Eisenmann B, Klein J
      Zeitschrift fur Anorganische und Allgemeine Chemie 621 (1995) 576-582
      Arsenidostannate mit Arsen-analogen (Sn As) - Schichten: Darstellung
      und Struktur von Na (Sn2 As2), Na0.3 Ca0.7 (Sn2 As2), Na0.4 Sr0.6 (Sn2As2),
      Na0.6 Ba0.4 (Sn2 As2) und K0.3 Sr0.7 (Sn2 As2)
      _cod_database_code 1008732
      _database_code_amcsd 0016613

      CELL PARAMETERS:    4.1010   4.1010  26.4860   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    385.768
      Density (g/cm3):      5.451
      MAX. ABS. INTENSITY / VOLUME**2:      198.2300192    
      RIR:     11.840
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                10.02         20.18        8.8287    0   0   3         2
                20.12          7.37        4.4143    0   0   6         2
                25.97         11.34        3.4304    0   1   2         6
                28.52          1.66        3.1298    1   0   4         6
                30.30        100.00        2.9499    0   1   5         6
                30.37          2.78        2.9429    0   0   9         2
                34.64          5.78        2.5895    1   0   7         6
                42.58         30.48        2.1232    1   0  10         6
                44.17         34.95        2.0505    1   1   0         6
                45.41          2.99        1.9973    1   1   3        12
                45.51          6.80        1.9930    0   1  11         6
                48.98          3.84        1.8597    1   1   6        12
                51.77          3.83        1.7657    0   0  15         2
                51.95          1.55        1.7600    2   0   2         6
                54.50         16.43        1.6837    2   0   5         6
                54.55          2.62        1.6824    1   1   9        12
                54.99          2.78        1.6697    0   1  14         6
                57.31          1.22        1.6075    0   2   7         6
                61.75          1.44        1.5023    1   1  12        12
                61.84          4.52        1.5004    1   0  16         6
                63.02          8.19        1.4750    0   2  10         6
                65.29          2.09        1.4292    2   0  11         6
                70.36          7.89        1.3380    1   1  15        12
                70.51          1.11        1.3355    1   2   2        12
                72.66         12.06        1.3012    1   2   5        12
                72.90          1.49        1.2976    1   0  19         6
                73.08          1.00        1.2948    2   0  14         6
                75.36          1.10        1.2612    0   0  21         2
                76.82          1.69        1.2408    0   1  20         6
                79.09          1.99        1.2109    0   2  16         6
                80.16          7.21        1.1974    2   1  10        12
                81.26          4.45        1.1839    3   0   0         6
                82.22          1.98        1.1725    1   2  11        12
                89.53          1.07        1.0948    1   2  14        12
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.