Hydroxylellestadite
Hughes J M, Drexler J W
Neues Jahrbuch fur Mineralogie, Monatshefte 1991 (1991) 327-336
Cation substitution in the apatite tetrahedral site:
crystal structures of type hydroxylellestadtite and type fermorite
Locality: Crestmore, California, USA
_database_code_amcsd 0014857
9.5224 9.5268 6.9087 90 90 119.9483 P2_1/m
atom       x      y     z occ Biso
Ca1   .33440 .66806 .0019     2.45
Ca2a   .0068  .2471   .25 .76 2.11
Ca2a'  .0049  .2780   .25 .24  2.0
Ca2b   .7516  .7591   .25 .76 2.20
Ca2b'  .7205  .7295   .25 .24  1.7
Ca2c   .2412 -.0057   .25 .76 2.02
Ca2c'  .2735 -.0074   .25 .24  1.7
Si1    .6295  .0301   .25  .5 1.13
S6+1   .6295  .0301   .25  .5 1.09
Si2   -.0297  .5995   .25  .5 1.12
S6+2  -.0297  .5995   .25  .5 1.12
Si3    .4003  .3713   .25  .5 2.12
S6+3   .4003  .3713   .25  .5 2.12
O1a    .3306  .4864   .25     2.17
O1b    .5145  .8442   .25     2.17
O1c    .1546  .6686   .25     2.19
O2a    .5872  .4650   .25     2.28
O2b    .5348  .1224   .25     2.10
O2c    .8786  .4134   .25     2.37
O3a    .3473  .2614 .0700     2.87
O3b    .7398  .0874 .0690     2.77
O3c   -.0863  .6520 .0694     2.85
OH    -.0047 -.0010  .210 .34  2.6
F       .004  -.003   .25 .08  1.9
Cl     .0040  .0003  .340 .12  2.7