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 = 26 C
Note: Reported structure does not reproduce reported formula or bondlengths
_database_code_amcsd 0014385
9.3207 9.3207 6.8947 90 90 120 P6_3/m
atom     x     y     z  occ  Biso
Ca1    1/3   2/3 .0009 .318  .801
Ca2  .2403 .9902   .25 .461  .846
P    .3992 .3710   .25 .394  .632
O1   .3295 .4816   .25 .451  .775
O2   .5829 .4643   .25 .493 1.322
O3   .3432 .2601 .0668      2.371
F        0     0   .25 .165 2.339