Fluor-schorl
Ertl A, Kolitsch U, Prowatke S, Dyar M D, Henry D J
European Journal of Mineralogy 18 (2006) 583-588
The F-analogue of schorl from Grasstein, Trentino - South Tyrol, Italy: crystal
structure and chemistry
Locality: pegmatite at Grasstein, Trentino-South Tyrol, Italy
_database_code_amcsd 0007165
15.997 15.997 7.179 90 90 120 R3m
atom       x       y      z occ   Uiso
NaX        0       0  .2295 .78  .0243
KX         0       0  .2295 .01  .0243
Fe2+Y .12643 .063214 .62633 .63 .00763
AlY   .12643 .063214 .62633 .19 .00763
Fe3+Y .12643 .063214 .62633 .04 .00763
Mn2+Y .12643 .063214 .62633 .04 .00763
Ti4+Y .12643 .063214 .62633 .01 .00763
MgY   .12643 .063214 .62633 .01 .00763
ZnY   .12643 .063214 .62633 .01 .00763
AlZ   .29899  .26186 .61246 .96 .00545
FeZ   .29899  .26186 .61246 .04 .00545
SiT   .19174  .18983 .00079 .98 .00480
AlT   .19174  .18983 .00079 .02 .00480
B     .11013  .22027  .4567      .0066
O2    .06163  .12325 .48601      .0146
Oh3V  .26992  .13496 .51180      .0125
FW         0       0  .7848 .76  .0408
OHW        0       0  .7848 .24  .0408
O4    .09295  .18590 .06917      .0091
O5    .18634  .09317 .09123     .00924
O6    .19797  .18804 .77760     .00828
O7    .28469  .28525 .08089     .00796
O8    .20979  .27035 .44298     .00962
H       .255   .1276   .385       .049