Fluor-dravite
Camara F, Ottolini L, Hawthorne F C
American Mineralogist 87 (2000) 1437-1442
Crystal chemistry of three tourmalines by SREF, EMPA and SIMS
Sample: Crystal 3
Locality: a pegmatite at Minas Gerais, Brazil
_database_code_amcsd 0002915
15.921 15.921 7.137 90 90 120 R3m
atom     x     y     z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
NaX      0     0 .8189 .81        .025   .025   .016   .012      0      0
CaX      0     0 .8189 .01        .025   .025   .016   .012      0      0
KX       0     0 .8189 .01        .025   .025   .016   .012      0      0
Fe2Y .0622 .9378 .4242 .30        .006   .006   .008   .002   .001  -.001
MgY  .0622 .9378 .4242 .20        .006   .006   .008   .002   .001  -.001
AlY  .0622 .9378 .4242 .26        .006   .006   .008   .002   .001  -.001
LiY  .0622 .9378 .4242 .22        .006   .006   .008   .002   .001  -.001
TiY  .0622 .9378 .4242 .02        .006   .006   .008   .002   .001  -.001
AlZ  .2611 .2978 .4414            .006   .006   .004   .003  -.001   .000
SiT  .1899 .1919 .0529 .96        .004   .004   .004   .002   .000   .000
B    .8902 .1098 .5977            .006   .006   .007   .003   .000   .000
O1       0     0 .2714 .03        .062   .062   .010   .031      0      0
OH1      0     0 .2714 .42        .062   .062   .010   .031      0      0
F1       0     0 .2714 .55        .062   .062   .010   .031      0      0
O2   .9389 .0611 .5687            .022   .022   .010   .020   .000   .000
OH3  .1343 .8657 .5432            .010   .010   .006   .001   .000   .000
O4   .9068 .0932 .9822            .007   .007   .007   .000   .000   .000
O5   .0932 .9068 .9603            .007   .007   .007   .000   .000   .000
O6   .1870 .1971 .2768            .009   .007   .004   .003   .000   .000
O7   .2857 .2855 .9727            .006   .005   .006   .001   .001   .000
O8   .2706 .2099 .6115            .010   .005   .008   .004  -.003  -.001