Bityite
Gatta G D, Nenert G, Guastella G, Lotti P, Guastoni A, Rizzato S
Mineralogical Magazine 78 (2014) 55-72
A single-crystal neutron and X-ray diffraction study of a Li,Be-bearing brittle mica
Note: Neutron, T = 20 K
Locality: Harding pegmatite, New Mexico, USA
_database_code_amcsd 0020141
5.0590 8.7909 19.0176 90 95.459 90 Cc
atom       x      y       z   occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Ca     .0009  .0920   .2491   .79 .0075  .0073  .0078  .0074  .0015  .0011  .0002
Na     .0009  .0920   .2491   .21 .0075  .0073  .0078  .0074  .0015  .0011  .0002
LiM1    .253   .759   .0020 .2665  .003
AlM2   .7479  .9160   .9991       .0031
AlM3   .2547  .0853  -.0003       .0036
AlT1   .4666  .9255  .14181   .95 .0027
BeT1   .4666  .9255  .14181   .05 .0027
SiT2   .5355  .0756  .85432       .0027
SiT3   .4569  .2551  .14414       .0027
AlT4   .5454  .7449  .85629   .94 .0027
BeT4   .5454  .7449  .85629   .06 .0027
O1     .9596  .4435  .05228       .0043
O11    .0471  .5632  .94042       .0044
O2     .3956  .2536  .05835       .0063
O22    .6142  .7494  .94649       .0036
O3     .3610  .0956  .17611       .0058
O33    .6403  .9180  .82243       .0057
O4     .2729  .7769  .16767       .0052
O44    .7122  .2183  .83131       .0057
O5     .2896  .3915  .17727       .0053
O55    .7305  .6038  .82119       .0059
O6     .4524  .5676  .05010       .0053
O66    .5499  .4348  .94822       .0052
H1      .369  .6547   .0617   .54  .025
H2      .442  .5944   .0959   .49  .029
H3      .643  .3388   .9473   .35  .010
H41     .622  .3543   .9239   .31  .011