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 A-1
_database_code_amcsd 0001323
6.6837 7.7080 6.9671 90.94 117.75 91.36 C-1
atom       x      y      z  occ  Uiso
P    -.01496 .34095 .26173      .0059
Al1        0      0      0      .0060
Al2        0      0     .5      .0058
O1    -.3163  .0161 -.1523      .0087
O2     .2981  .0594  .5809      .0090
O3     .1001 -.2224 -.3868      .0080
O4     .0259  .2340  .0980      .0102
OH     .0346  .0859 -.2329 .567 .0093
F      .0346  .0859 -.2329 .433 .0093
Li1      .08   -.32    .28   .5 .0277
Li2      .05   -.32    .31   .5 .0277