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-2
_database_code_amcsd 0001322
6.6984 7.710 6.983 91.06 117.81 91.49 C-1
atom      x      y      z  occ  Uiso
P    -.01538 .34136 .26351     .0054
Al1       0      0      0      .0058
Al2       0      0     .5      .0055
O1   -.3169  .0159 -.1551      .0084
O2    .2980  .0589  .5783      .0087
O3    .1004 -.2227 -.3879      .0079
O4    .0258  .2346  .0998      .0094
Oh    .0391  .0871 -.2306 .706 .0088
F     .0391  .0871 -.2306 .294 .0088
Li1     .05   -.33    .28   .5 .0222
Li2     .08   -.31    .32   .5 .0222
H      .190   .129   .832 .706 .0100