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a(angstr)    3.87         3.84                                3.85     3.83     3.84
b(angstr)    11.21       11.22                              11.27   11.23    11.22
c(angstr)    11.96       11.30                              11.32   11.29    11.31
Vol(angstr3) 519.8         -                                 490.62    -         -

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