Montebrasite
Groat L A, Raudsepp M, Hawthorne F C, Ercit T S, Sherriff B L, Hartman J S
American Mineralogist 75 (1990) 992-1008
The amblygonite-montebrasite series: Characterization by single-crystal
structure refinement, infrared spectroscopy and multinuclear MAS-NMR
spectroscopy
sample AF-46
_database_code_amcsd 0001324
6.6782 7.7159 6.949 90.82 117.66 91.22 C-1
atom       x      y      z occ  Uiso
P    -.01457 .34047 .26018     .0057
Al1        0      0      0     .0060
Al2        0      0     .5     .0057
O1    -.3160  .0166 -.1500     .0086
O2     .2984  .0597  .5829     .0090
O3     .0998 -.2222 -.3860     .0081
O4     .0260  .2332  .0964     .0101
OH     .0304  .0850 -.2352  .5 .0092
F      .0304  .0850 -.2352  .5 .0092
Li1      .05  -.315   .263  .5 .0251
Li2     .061  -.329   .310  .5 .0251