Hambergite
Gatta G D, McIntyre G J, Bromiley G, Guastoni A, Nestola F
American Mineralogist 97 (2012) 1891-1897
A single-crystal neutron diffraction study of hambergite, Be2BO3(OH,F)
Locality: Anjanabonoina mine, Madagascar
_database_code_amcsd 0019722
9.762 12.201 4.430 90 90 90 Pbca
atom      x      y      z occ   Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3)  U(2,3)
Be1  .00261 .18871 .26018     .00651  .0072  .0060  .0063  .0003 -.0002 -.00011
Be2  .23724 .06757 .27717     .00650  .0078  .0059  .0058  .0008  .0002  -.0001
B    .10617 .10704 .77298     .00451  .0046  .0041  .0041  .0015 -.0001   .0003
O1   .03760 .18766 .61914     .00697  .0101  .0056  .0052  .0026 -.0010  -.0002
O2   .10120 .10302 .08204     .00665  .0081  .0072  .0047  .0026 -.0002  -.0001
O3   .18691 .03450 .61701     .00731  .0100  .0068  .0051  .0039  .0009   .0009
O4   .33976 .17302 .29600 .96 .00839  .0065  .0081  .0106 -.0017  .0011  -.0015
H     .3138  .2228  .4574 .96  .0238  .0231  .0226  .0258 -.0015  .0060  -.0108
F4   .33976 .17302 .29600 .04 .00839  .0065  .0081  .0106 -.0017  .0011  -.0015