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: X-ray, T = 100 K
Locality: Harding pegmatite, New Mexico, USA
_database_code_amcsd 0020138
5.0864 8.8186 19.1098 90 95.445 90 C2/c
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         0 .09233     .25  .74 .0077 -.0078  .0090  .0064      0  .0015      0
Na         0 .09233     .25  .26 .0077 -.0078  .0090  .0064      0  .0015      0
LiM1     .25    .75       0  .39  .027
AlM2   .7466 .91560  .99998      .0049  .0048  .0052  .0047  .0002  .0008  .0002
SiT1   .4652 .92506  .14380 .925 .0059  .0056  .0061  .0063 -.0002  .0015  .0002
BeT1   .4652 .92506  .14380  .02 .0059  .0056  .0061  .0063 -.0002  .0015  .0002
AlT2   .4552 .25546  .14383  .72 .0034  .0035  .0045  .0024  .0005  .0004  .0004
SiT2   .4552 .25546  .14383  .22 .0034  .0035  .0045  .0024  .0005  .0004  .0004
BeT2   .4552 .25546  .14383  .06 .0034  .0035  .0045  .0024  .0005  .0004  .0004
O1     .9571  .4407  .05603      .0086  .0060  .0091  .0109  .0024  .0018 -.0003
O2     .3911  .2517   .0560      .0075  .0078  .0056  .0094  .0004  .0020  .0015
O3     .3604  .0885  .17690      .0083  .0075  .0102  .0077 -.0008  .0029  .0020
O4     .2802  .7797  .16799      .0082  .0088  .0079  .0078  .0012  .0003  .0013
O5     .2799  .3932  .17778      .0079  .0091  .0073  .0074  .0002  .0009 -.0007
O6     .4521  .5659  .05047      .0063  .0059  .0059  .0075 -.0013  .0023 -.0012
H1     .3663  .6559   .0618  .56   .07
H2     .4418  .5943   .0992  .27   .07