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: RC8 - enamel
_database_code_amcsd 0002287
9.4343 9.4343 6.8681 90 90 120 P6_3/m
atom     x     y     z occ
Ca1    2/3   1/3 .0024 .97
Na1    2/3   1/3 .0024 .02
Mg1    2/3   1/3 .0024 .01
Ca2  .2442 .9880   .25 .92
Na2  .2442 .9880   .25 .02
Mg2  .2442 .9880   .25 .01
P    .3975 .3668   .25 .87
O1   .3254 .4863   .25 .91
O2   .5684 .4542   .25
O3   .3445 .2604 .0697 .94
Oh       0     0 .1747 .57
H        0     0 .0608 .23