Carbonate-fluorapatite
Perdikatsis B
Materials Science Forum 79 (1991) 809-814
X-ray powder diffraction study of francolite by the Rietveld method
Locality: Epirus, Greece
Sample: T = 750 C
Note: Reported structure does not reproduce reported formula or bondlengths
_database_code_amcsd 0014387
9.3593 9.3593 6.8919 90 90 120 P6_3/m
atom     x     y     z  occ  Biso
Ca1    1/3   2/3 .0002 .328 1.054
Ca2  .2414 .9914   .25 .484  .817
P    .3983 .3689   .25 .454  .973
O1   .3255 .4838   .25 .451  .460
O2   .5870 .4626   .25 .488 1.625
O3   .3420 .2565 .0679      1.649
F        0     0   .25 .171 4.091