Hydroxylapatite
Wilson R M, Elliot J C, Dowker S E P
American Mineralogist 84 (1999) 1406-1414
Rietveld refinement of the crystallographic structure of human dental
enamel apatites
Sample: H6M, synthetic
_database_code_amcsd 0002283
9.4172 9.4172 6.8799 90 90 120 P6_3/m
atom     x     y     z occ
Ca1    2/3   1/3 .0017
Ca2  .2467 .9933   .25
P    .3979 .3678   .25
O1   .3275 .4844   .25
O2   .5860 .4649   .25
O3   .3424 .2577 .0685
OH       0     0 .1999  .5
H        0     0 .0608  .5