Bertossaite
Hatert F, Lefevre P, Fransolet A M
The Canadian Mineralogist 49 (2011) 1079-1087
The crystal structure of bertossaite, CaLi2[Al4(PO4)4(OH,F)4]
Locality: Buranga pegmatite, Rwanda
_database_code_amcsd 0018635
11.476 15.744 7.228 90 90 90 Imcb
atom       x      y     z occ  Uiso
Li(1)     .5  .2851 .2334 .93  .020
Na(1)     .5  .2851 .2334 .07  .020
Li(2)     .5  .2814  .320 .93  .008
Na(2)     .5  .2814  .320 .07  .008
Ca       .25     .5    .5 .87 .0106
Na       .25     .5    .5 .13 .0106
Al    .13082 .37439 .1405     .0052
P(1)     .25 .29109    .5     .0054
P(2)       0 .45694 .7681     .0056
O(1)   .1427  .2657 .0331     .0101
O(2)   .2294  .3512 .3364     .0106
O(3)       0  .3938 .6123     .0117
O(4)       0  .4049 .9558     .0078
O(5)   .1096  .4861 .2399     .0082
Oh(1)      0  .3368 .2648     .0076
Oh(2)    .25  .4129     0     .0052
H(1)       0  .3572 .3789       .03
H(2)     .25  .4498     0       .04