Hydroxylapatite
Hendricks S, Jefferson M, Mosley V
Zeitschrift fur Kristallographie 81 (1932) 352-369
The Crystal Structures of Some Natural and Synthetic Apatite-Like
Substances
_cod_database_code 1011242
_database_code_amcsd 0018108
9.40 9.40 6.93 90 90 120 P6_3/m
atom    x    y    z
Ca1   1/3  2/3    0
Ca2   .25    0  .25
P1   .417 .361  .25
O1    1/3   .5  .25
O2     .6 .467  .25
O3    1/3  .25 .063
O4      0    0  .25