Strontium
      Wyckoff R W G
      Crystal Structures 1 (1963) 7-83
      Second edition. Interscience Publishers, New York, New York
      Sample at T = 521 K
      Hexagonal closest packed, hcp, structure, known as the beta phase
      _database_code_amcsd 0011193

      CELL PARAMETERS:    4.3200   4.3200   7.0600   90.000   90.000  120.000
      SPACE GROUP: P6_3/mmc  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    114.105
      Density (g/cm3):      2.550
      MAX. ABS. INTENSITY / VOLUME**2:      90.25523874    
      RIR:     11.525
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.78         23.14        3.7412    1   0   0         6
                25.23         26.49        3.5300    0   0   2         2
                26.97        100.00        3.3058    1   0   1        12
                34.95         16.19        2.5675    1   0   2        12
                41.82         18.67        2.1600    1   1   0         6
                45.54         21.21        1.9920    1   0   3        12
                48.68          2.82        1.8706    2   0   0         6
                49.47         21.36        1.8424    1   1   2        12
                50.47         14.95        1.8082    2   0   1        12
                51.80          3.03        1.7650    0   0   4         2
                55.60          3.54        1.6529    2   0   2        12
                57.76          3.08        1.5963    1   0   4        12
                63.53          6.53        1.4644    2   0   3        12
                66.07          1.88        1.4141    2   1   0        12
                67.56         10.41        1.3865    2   1   1        24
                68.67          6.54        1.3667    1   1   4        12
                71.40          4.26        1.3210    1   0   5        12
                71.93          2.77        1.3127    2   1   2        24
                73.81          1.26        1.2838    2   0   4        12
                76.37          2.24        1.2471    3   0   0         6
                78.99          5.99        1.2121    2   1   3        24
                81.93          3.54        1.1759    3   0   2        12
                86.32          2.26        1.1270    2   0   5        12
                88.63          1.40        1.1036    2   1   4        24
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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.