Chkalovite
Simonov M A, Egorov-Tismenko Y K, Belov N V
Doklady Akademii Nauk SSSR 225 (1975) 1319-1322
Utochnennaya kristallicheskaya struktura chkalovita Na2Be[Si2O6]
_database_code_amcsd 0012452
21.129 6.881 21.1880 90 90 90 Fdd2
atom     x     y     z Biso
Na1      0     0 .5116 1.04
Na2      0     0 .1402  .95
Na3  .1732 .0047 .0306  .87
Na4  .1582 .0112 .6646  .74
Be1  .1685  .018 .8259  .39
Be2      0     0 .3649  .53
Si1      0     0     0  .16
Si2      0    .5 .1601  .14
Si3  .1500 .0124 .1754  .15
Si4  .1837 .5068 .0118  .15
O1   .0143 .1886 .7076  .51
O2   .1111 .0852 .1154  .50
O3   .1890 .2014 .2038  .53
O4   .1509 .2050 .4816  .48
O5   .2226 .0697 .5728  .42
O6   .1883 .1997 .8703  .42
O7   .1167 .0843 .7713  .41
O8   .0179 .1883 .0406  .38
O9   .0546 .0808 .4128  .41