Leifite
Sokolova E V, Huminicki D M C, Hawthorne F C, Agakhanov A A, Pautov L A, Grew E S
The Canadian Mineralogist 40 (2002) 183-192
The crystal chemistry of telyushenkoite and leifite, A Na6[Be2Al3Si15O39F2],
A = Cs, Na
_database_code_amcsd 0005762
14.3608 14.3608 4.8570 90 90 120 P-3m1
atom      x       y     z occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
SiT1      0  .21681   1/2 .64 .0137  .0141  .0145  .0123  .0070 -.0020 -.0010
AlT1      0  .21681   1/2 .33 .0137  .0141  .0145  .0123  .0070 -.0020 -.0010
ZnT1      0  .21681   1/2 .03 .0137  .0141  .0145  .0123  .0070 -.0020 -.0010
SiT2      0  .34443     0     .0113  .0120  .0113  .0108  .0060 -.0003 -.0002
SiT3 .44762 -.44762 .3059     .0075  .0093  .0093  .0062  .0062 -.0001  .0001
BeT4    1/3     2/3  .366     .0091  .0091  .0091  .0092  .0045      0      0
Na   .75042 -.75042 .2033     .0214  .0212  .0212  .0165  .0066  .0030 -.0031
CsA       0       0     0 .05 .0444  .0495  .0495  .0343  .0247      0      0
RbA       0       0     0 .11 .0444  .0495  .0495  .0343  .0247      0      0
KA        0       0     0 .10 .0444  .0495  .0495  .0343  .0247      0      0
NaA       0       0     0 .57 .0444  .0495  .0495  .0343  .0247      0      0
WatB      0       0   1/2 .63 .0297  .0119  .0119  .0653  .0060      0      0
O1    .1008  -.1008 .3946     .0325  .0328  .0328  .0190  .0067 -.0063  .0063
O2    .3078   .2614 .2486     .0178  .0201  .0156  .0181  .0094  .0080  .0068
O3    .3595   .4585 .1035     .0124  .0138  .0111  .0132  .0069 -.0042 -.0033
O4      1/2       0   1/2     .0133  .0165  .0092  .0116  .0046 -.0017 -.0034
O5   .39431 -.39431 .4821     .0105  .0137  .0137  .0084  .0099  .0006 -.0005
F       1/3     2/3 .0421     .0136  .0167  .0167  .0073  .0084      0      0