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 M6116
_database_code_amcsd 0001325
6.644 7.744 6.910 90.35 117.33 91.01 C-1
atom       x      y      z occ  Uiso
P    -.01308  .3319 .25580     .0054
Al1        0      0      0     .0056
Al2        0      0     .5     .0055
O1    -.3148  .0192 -.1426     .0084
O2     .2987  .0609  .5884     .0087
O3     .0995 -.2209 -.3830     .0076
O4     .0290  .2320  .0925     .0097
F      .0191  .0824 -.2413     .0098
Li1     .050  -.320  .2403  .5 .0201
Li2    .0654 -.3239  .3070  .5 .0201